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glass · minimal · premium · modern · soft

Prism Glass.

Real glassmorphism without the cliché. A soft tonal backdrop in cool lavender, surfaces that actually blur the layers behind them, hairline edges in 8% ink, and a single periwinkle accent. The depth is restraint, not decoration.

01 · Preview

The kitchen sink.

Prism.app
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glass · minimal · premium

Build with Prism Glass.

A complete design system, ready for your AI coding agent. Every primitive, token, and pattern below is generated straight from DESIGN.md — drop the file in your project and ship matching UI in minutes.

Start building →View on GitHub
Featured
Tokens that travel with your prompts.
Active users
12,840
Status
All systems operational
01 · Color

Palette

primary
#1A1D2C
secondary
#5A5F73
tertiary
#1A1D2C
neutral
#EEF0F7
surface
RGBA(255,255,255,0.62)
02 · Typography

Type scale

display
The quick brown fox
h1
A major section heading
h2
A subsection title
body
Body copy in the system's body font.
03 · Buttons

Buttons

PrimarySecondaryOutlineGhostText link →
Disabled
04 · Inputs

Form controls

Email
iris@studio.com
Password
••••••••••••
Bio
Designing for long-form publications. Based in Kyoto.
05 · Choices

Select & toggle

Plan
Starter
Free forever
Pro
$18 / month
Team
$48 / month
Toggles
Public profile
Require two-factor
Auto-accept invites
06 · Tags & badges

Labeling

NeutralAccentSolidWith dot
NEWBETAv2.0LIVE
07 · Cards

Cards

Feature
Editorial rigor

Prose-first token file — decisions live next to their reasoning.

Learn more →
Metric
24,810
▲ +12.4% vs last week
08 · Navigation

Tabs & breadcrumb

Overview
Analytics
Members
Workspace/Projects/Heritage System
09 · Spacing

Spacing scale

Fine micro-scale (1–5px) for pills, editorial scale (12–21px) for the grid.

1px
2px
5px
8px · base
10px
12px
14px
16px
18px
20px
21px
10 · Radius

Border radius scale

The system's own radius tokens — sm for chips and inputs, md for buttons, lg for cards, pill for fully-rounded CTAs.

sm
10px
md
16px
lg
22px
pill
9999px
11 · Elevation

Depth & elevation

00 · Flat
Elevation 00
01 · Low
Elevation 01
02 · Medium
Elevation 02
03 · High
Elevation 03
12 · Data

Charts

Weekly revenue
$48,210
M
T
W
T
F
S
S
Active sessions
2,184
02 · The file

DESIGN.md

markdown
1---
2name: "Prism Glass"
3description: "Real glassmorphism without the cliché. A soft tonal backdrop in cool lavender, surfaces that actually blur the layers behind them, hairline edges in 8% ink, and a single periwinkle accent. The depth is restraint, not decoration."
4tags: [glass, minimal, premium, modern, soft]
5colors:
6 primary: "#1a1d2c"
7 secondary: "#5a5f73"
8 tertiary: "#1a1d2c"
9 neutral: "#eef0f7"
10 surface: rgba(255,255,255,0.62)
11typography:
12 display: Manrope
13 body: Manrope
14 mono: "JetBrains Mono"
15 scale:
16 hero: "3.75rem / 1.04 / 700 / -0.035em"
17 h1: "2.5rem / 1.12 / 700 / -0.025em"
18 h2: "1.625rem / 1.25 / 600 / -0.02em"
19 body: "1rem / 1.6 / 400 / -0.005em"
20radius:
21 sm: 10px
22 md: 16px
23 lg: 22px
24 pill: 9999px
25shadows:
26 card: "rgba(26,29,44,0.06) 0 1px 0 inset, rgba(26,29,44,0.04) 0 2px 12px -4px, rgba(26,29,44,0.06) 0 0 0 1px"
27 button: "rgba(108,124,255,0.22) 0 6px 18px -6px"
28borders:
29 card: "1px solid rgba(26,29,44,0.06)"
30 divider: rgba(26,29,44,0.06)
31buttons:
32 primary:
33 background: #6c7cff
34 color: #ffffff
35 border: none
36 shape: pill
37 padding: 10px 20px
38 font: 600 / 0.875rem
39 shadow: rgba(108,124,255,0.22) 0 6px 18px -6px
40 secondary:
41 background: rgba(255,255,255,0.65)
42 color: #1a1d2c
43 border: 1px solid rgba(26,29,44,0.08)
44 shape: pill
45 padding: 10px 20px
46 font: 600 / 0.875rem
47 outline:
48 background: transparent
49 color: #1a1d2c
50 border: 1px solid rgba(26,29,44,0.14)
51 shape: pill
52 padding: 10px 20px
53 font: 600 / 0.875rem
54 ghost:
55 background: transparent
56 color: #5a5f73
57 border: none
58 shape: pill
59 padding: 10px 16px
60 font: 600 / 0.875rem
61charts:
62 variant: "rounded-bars"
63 stroke_width: 1.5
64 fill_opacity: 0.1
65 gridlines: false
66 bar_gap: 12px
67 highlight: single
68 dot_marker: true
69fonts_url: "https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap"
70dependencies: ["lucide-react"]
71---
72
73# Prism Glass
74
75## AI Build Instructions
76
77> **Read this section before writing any code.** The rules below
78> are non-negotiable. Every value used in the UI must come from this
79> file's frontmatter — never substitute, approximate, or invent new
80> colors, fonts, radii, or shadows. If a value is missing, ask the
81> user before adding one.
82
83### 1 · Your role
84
85You are building UI for a project that has adopted **Prism Glass** as its
86design system. Treat `DESIGN.md` as the single source of truth.
87Your job is to translate the user's product requirements into
88components and pages that look like they were designed by the same
89person who authored this file.
90
91### 2 · Token compliance
92
93- Pull every color, font family, radius, shadow, and spacing value
94 from the frontmatter at the top of this file.
95- Use semantic roles (e.g. `primary`, `accent`, `muted`) — never
96 hard-code hex values that bypass the system.
97- When a token can be expressed as a CSS variable, declare it once
98 in your global stylesheet and reference it everywhere downstream.
99- The Google Fonts `<link>` is provided in the Typography section.
100 Add it to `<head>` before any component renders.
101
102### 3 · Component recipes
103
104Use these recipes verbatim when building the corresponding component.
105
106#### Buttons
107
108Four variants are defined. Pick one — never blend variants or invent a fifth.
109
110- **Primary** — pill shape, bg `#6c7cff`, text `#ffffff`, padding `10px 20px`, weight `600`, shadow `rgba(108,124,255,0.22) 0 6px 18px -6px`.
111- **Secondary** — pill shape, bg `rgba(255,255,255,0.65)`, text `#1a1d2c`, border `1px solid rgba(26,29,44,0.08)`, padding `10px 20px`, weight `600`.
112- **Outline** — pill shape, text `#1a1d2c`, border `1px solid rgba(26,29,44,0.14)`, padding `10px 20px`, weight `600`.
113- **Ghost** — pill shape, text `#5a5f73`, padding `10px 16px`, weight `600`.
114
115Reach for **primary** as the single dominant CTA per screen.
116**Secondary** for the supporting action. **Outline** for tertiary
117actions in toolbars. **Ghost** for inline links and table actions.
118
119#### Cards
120
121- Background: `rgba(255,255,255,0.62)`
122- Border: `1px solid rgba(26,29,44,0.06)`
123- Shadow: `rgba(26,29,44,0.06) 0 1px 0 inset, rgba(26,29,44,0.04) 0 2px 12px -4px, rgba(26,29,44,0.06) 0 0 0 1px`
124- Radius: `radius.lg` (`22px`)
125- Internal padding: `20px` for compact cards, `24–28px` for content cards.
126
127#### Tabs
128
129Variant: `pill`. Segmented control inside a tinted track. Active tab gets a filled pill in the accent color.
130
131#### Charts
132
133- Bar/line variant: `rounded-bars`
134- No gridlines — let the bars/lines carry the data.
135- Highlight strategy: `single` — emphasize a single bar/point per chart.
136
137#### Typography pairings
138
139- **Display (`Manrope`)** — h1, h2, hero headlines, brand wordmarks.
140- **Body (`Manrope`)** — paragraphs, labels, button text, form inputs.
141- **Mono (`JetBrains Mono`)** — code, eyebrows, metadata, numerals in tables.
142
143### 4 · Hard constraints
144
145Never do any of the following without explicit instruction from the user:
146
147- Introduce a new color, font, radius, or shadow that isn't declared above.
148- Mix this system with another (e.g. don't paste in Material or Bootstrap defaults).
149- Use generic gradient defaults (purple→blue, peach→pink) — they break the system's voice.
150- Reach for emoji icons. Use a consistent icon library and size icons in line with body type.
151- Add motion that exceeds the system's restraint — keep transitions short (≤200ms) and subtle.
152
153### 5 · Before you finish — verify
154
155Run through this checklist for every screen you produce:
156
157- [ ] Every color used appears in the Colors table above.
158- [ ] Headlines use the display font; body copy uses the body font.
159- [ ] Buttons match one of the declared variants exactly (shape, padding, weight).
160- [ ] Border-radius values come from `radius.sm` / `radius.md` / `radius.lg` / `radius.pill`.
161- [ ] Cards and dividers use the declared border + shadow tokens.
162- [ ] No values were invented; if you needed something missing, you stopped and asked.
163
164---
165
166## 1. Atmosphere
167
168Prism Glass is glassmorphism done with restraint. The backdrop is a soft tonal mesh — cool lavender shading into pale rose, never harsh, never neon — and surfaces sit on top as translucent panes that genuinely blur the layers behind them. Edges are 1px hairlines at 6% ink, never thick borders. The hero CTA is the single periwinkle moment in the entire system.
169
170The discipline is in what's omitted: no second accent, no decorative gradients on the surfaces themselves, no glow halos. Glass earns its drama from the backdrop bleeding through, not from chrome.
171
172**Signature moves**
173- Real `backdrop-filter: blur(28px) saturate(180%)` on every surface — not faked with white at 80%
174- Soft tonal mesh backdrop (lavender → pale rose), never a 2-color gradient
175- One periwinkle accent (`#6c7cff`), used only on the primary CTA and active pill tab
176- Pill shape on every interactive surface — buttons, tabs, badges
177- Hairline borders at 6% ink — the glass needs an edge to read
178
179## 2. Palette
180
181### Surfaces
182- **Glass** `rgba(255,255,255,0.62)` over a blurred backdrop — the standard pane
183- **Glass Strong** `rgba(255,255,255,0.78)` — for modals and the nav
184- **Glass Subtle** `rgba(255,255,255,0.42)` — for inline chips and inputs
185
186### Backdrop (apply at body level)
187- `radial-gradient(ellipse 80% 50% at 15% 0%, oklch(0.92 0.08 280 / 0.45), transparent 60%)`
188- `radial-gradient(ellipse 70% 50% at 85% 10%, oklch(0.92 0.08 340 / 0.32), transparent 60%)`
189- Base `#eef0f7`
190
191### Ink
192- **Ink** `#1a1d2c` — text, headings
193- **Ink 60** `#5a5f73` — secondary text
194- **Hairline** `rgba(26,29,44,0.06)` — every divider, every glass edge
195
196### Accent
197- **Periwinkle** `#6c7cff` — primary CTA, active tab
198- **Periwinkle Soft** `rgba(108,124,255,0.12)` — focus ring
199
200## 3. Typography
201
202| Role | Font | Size | Weight | Leading | Tracking |
203|------|------|------|--------|---------|----------|
204| Hero | Manrope | 60px | 700 | 1.04 | -0.035em |
205| H1 | Manrope | 40px | 700 | 1.12 | -0.025em |
206| H2 | Manrope | 26px | 600 | 1.25 | -0.02em |
207| Body | Manrope | 16px | 400 | 1.6 | -0.005em |
208| UI | Manrope | 13px | 600 | 1.4 | 0 |
209| Mono / Metric | JetBrains Mono | 12px | 500 | 1.0 | 0.04em uppercase |
210
211Manrope across the board — geometric, soft-cornered, calm. Three weights: 400 / 600 / 700.
212
213## 4. Buttons
214
215### Primary (Periwinkle Pill)
216```css
217background: #6c7cff;
218color: #ffffff;
219padding: 10px 20px;
220border-radius: 9999px;
221box-shadow: rgba(108,124,255,0.22) 0 6px 18px -6px;
222```
223
224### Secondary (Glass Pill)
225- Glass surface (`rgba(255,255,255,0.65)`), backdrop-blur, 1px hairline at 8% ink
226- Same pill shape, ink text
227
228### Outline & Ghost
229- Same pill shape — outline is 1px hairline at 14% ink, ghost has no border at all
230
231## 5. Cards
232
233Every card is a glass pane:
234```css
235background: rgba(255,255,255,0.62);
236backdrop-filter: blur(28px) saturate(180%);
237border: 1px solid rgba(26,29,44,0.06);
238box-shadow:
239 rgba(26,29,44,0.06) 0 1px 0 inset,
240 rgba(26,29,44,0.04) 0 2px 12px -4px;
241border-radius: 22px;
242```
243
244The 1px inset highlight at the top is what sells the glass — without it, the pane reads as flat white-over-color.
245
246## 6. Charts
247
248Rounded bars (4px corner) with 12px gap. One bar in periwinkle, others in 14% ink. Line charts at 1.5px in periwinkle with a 10% fill underneath, ending in a small dot marker. No gridlines — the glass surface carries the rhythm.
249
250## 7. Tabs
251
252Pill tabs. Active = periwinkle background, white text. Inactive = no background, ink-secondary text. Hover = 12% periwinkle wash.
253
254## 8. Spacing
255
256- Base 4px
257- Scale: `4, 8, 12, 16, 20, 24, 32, 48, 64, 80`
258- Section padding: 80px desktop, 40px mobile — glass needs negative space to breathe
259
260## 9. Do's & don'ts
261
262✅ **Do**
263- Use real `backdrop-filter` with both blur AND saturate — saturation is what makes it feel glass, not opacity
264- Hold the backdrop to soft tonal mesh, never a hard 2-color gradient
265- Use the periwinkle exactly once per screen — primary CTA OR active tab, not both
266- Keep the 1px inset highlight on every card — that is the glass
267
268❌ **Don't**
269- Stack glass on glass — one pane per layer, never nested
270- Use a second accent color — periwinkle alone
271- Use sharp corners — every surface is 16-22px or pill
272- Skip backdrop-filter and fake it with white opacity — the depth disappears
273
274---
275
276## Tokens
277
278> Generated from the same source the live preview renders from.
279> Treat the values below as the contract — never substitute approximations.
280
281### Colors
282
283| Role | Value |
284|-----------|-------|
285| primary | `#1a1d2c` |
286| secondary | `#5a5f73` |
287| tertiary | `#1a1d2c` |
288| neutral | `#eef0f7` |
289| surface | `rgba(255,255,255,0.62)` |
290
291### Typography
292
293- **Display:** Manrope
294- **Body:** Manrope
295- **Mono:** JetBrains Mono
296
297| Role | size / leading / weight / tracking |
298|------|------------------------------------|
299| Hero | 3.75rem / 1.04 / 700 / -0.035em |
300| H1 | 2.5rem / 1.12 / 700 / -0.025em |
301| H2 | 1.625rem / 1.25 / 600 / -0.02em |
302| Body | 1rem / 1.6 / 400 / -0.005em |
303
304### Radius
305
306- sm: `10px`
307- md: `16px`
308- lg: `22px`
309- pill: `9999px`
310
311### Shadows
312
313- **card:** `rgba(26,29,44,0.06) 0 1px 0 inset, rgba(26,29,44,0.04) 0 2px 12px -4px, rgba(26,29,44,0.06) 0 0 0 1px`
314- **button:** `rgba(108,124,255,0.22) 0 6px 18px -6px`
315
316### Borders
317
318- **card:** `1px solid rgba(26,29,44,0.06)`
319- **divider:** `rgba(26,29,44,0.06)`
320
321### Buttons
322
323Four variants, each fully tokenized. The preview renders from these exact values.
324
325#### Primary
326
327| Property | Value |
328|----------|-------|
329| shape | `pill` |
330| background | `#6c7cff` |
331| color | `#ffffff` |
332| border | `none` |
333| padding | `10px 20px` |
334| fontWeight | `600` |
335| fontSize | `0.875rem` |
336| shadow | `rgba(108,124,255,0.22) 0 6px 18px -6px` |
337
338#### Secondary
339
340| Property | Value |
341|----------|-------|
342| shape | `pill` |
343| background | `rgba(255,255,255,0.65)` |
344| color | `#1a1d2c` |
345| border | `1px solid rgba(26,29,44,0.08)` |
346| padding | `10px 20px` |
347| fontWeight | `600` |
348| fontSize | `0.875rem` |
349
350#### Outline
351
352| Property | Value |
353|----------|-------|
354| shape | `pill` |
355| background | `transparent` |
356| color | `#1a1d2c` |
357| border | `1px solid rgba(26,29,44,0.14)` |
358| padding | `10px 20px` |
359| fontWeight | `600` |
360| fontSize | `0.875rem` |
361
362#### Ghost
363
364| Property | Value |
365|----------|-------|
366| shape | `pill` |
367| background | `transparent` |
368| color | `#5a5f73` |
369| border | `none` |
370| padding | `10px 16px` |
371| fontWeight | `600` |
372| fontSize | `0.875rem` |
373
374### Charts
375
376| Property | Value |
377|----------|-------|
378| variant | `rounded-bars` |
379| strokeWidth | `1.5` |
380| fillOpacity | `0.1` |
381| gridlines | `false` |
382| barGap | `12px` |
383| highlight | `single` |
384| dotMarker | `true` |
385
03 · How to use it

Wire it into your agent.

markdown
# CLAUDE.md
Reference @DESIGN.md for all styling decisions. Apply tokens strictly — do not introduce colors, fonts, or radii outside the system. When in doubt, prefer the values declared in DESIGN.md frontmatter.
04 · Required setup

Three snippets.

Google Fonts link

html
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" />

Install dependencies

bash
npm install lucide-react

Tailwind config

js
// tailwind.config.js
export default {
theme: {
extend: {
fontFamily: {
display: ['"Manrope"', 'serif'],
sans: ['"Manrope"', 'sans-serif'],
mono: ['"JetBrains Mono"', 'monospace'],
},
colors: {
primary: '#1a1d2c',
secondary: '#5a5f73',
accent: '#1a1d2c',
neutral: '#eef0f7',
surface: 'rgba(255,255,255,0.62)',
},
borderRadius: {
sm: '10px',
md: '16px',
lg: '22px',
},
},
},
};
05 · Keep browsing

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Status
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Build with Atelier Glass.

A complete design system, ready for your AI coding agent. Every primitive, token, and pattern below is generated straight from DESIGN.md — drop the file in your project and ship matching UI in minutes.

Start building →View on GitHub
Featured
Tokens that travel with your prompts.
Active users
12,840
Status
All systems operational