prism·mdthe design press
EXTRACTED · 10 SECTIONS · 35 COLORS · GRADE C 65/100

cal.com

35 colours · Cal Sans UI Variable Light woff2 captured · real motion · desktop + mobile shots — every number measured, never written.

35
colors
12
faces
11
shadows
2
keyframes
01

Color — roles, semantics & the full census

35 colors measured · click any swatch to copy

Canvas
#f4f4f4
AAA 17.17:1
Ink
#111111
AAA 17.17:1
Accent
#7826b1
AAA 7.04:1
Line
#ffffff
Fail 1.1:1
Semantic states

No semantic state colors detected — this system signals state through weight & motion, not hue.

35 colors mined from the live renderexpand
02

Type — the ladder, in the real face

5 roles · rendered live in the real sans-serif (captured woff2) · lines are editable, click any spec to copy

display xl
display-xl64px · 600
display md
display-md18px · 300 · ×3.56
body
body12px · 400 · ×1.50
body sm
body-sm14px · 300 · ×0.86
button
button12px · 600 · ×1.17
03

Spacing & radius, made spatial

9 spacing steps · 7 radii · bars are exact px widths

Spacing scale
xxs · 2px
xs · 6px
sm · 10px
md · 12px
base · 18px
lg · 24px
xl · 48px
2xl · 80px
3xl · 96px
Radius
none
0px
xs
4px
sm
8px
md
12px
lg
16px
xl
29px
full
1000px
04

Depth — elevation is extracted, not invented

11 box-shadows measured on the live page · click a tile to copy its raw value

shadow-1
shadow-2
shadow-3
shadow-4
shadow-5
05

Motion — easings, transitions & live keyframes

0 easing curves · 2 keyframes · hover a tile to preview

2 keyframe animations extracted
pulse
__framer-loading-spin
06

Components — the closed vocabulary

6 component families · 20 variants counted on the live DOM

ComponentVariants found
links×10
heading H3×4
heading H2×3
inputs×1
badges×1
heading H1×1
Component style specs (§4)expand

Buttons

Ghost

  • Background: #000000
  • Text: #ffffff {colors.hairline}
  • Padding: 12px 24px
  • Radius: 8px
  • Shadow: rgba(0, 0, 0, 0.15) 0px 4px 12px 0px
  • Font: 12px weight 600
  • Use: Subtle action, toolbar, nav button

Pill

  • Background: #f5f5f5 {colors.surface-2}
  • Text: #0000ee
  • Padding: 4px 8px 4px 12px
  • Radius: 9999px
  • Shadow: rgba(34, 42, 53, 0.05) 0px 4px 8px 0px
  • Font: 12px weight 400
  • Use: Status pills, tags, chips
07

Layout — structure & dimensions

5 layout metrics measured

header 64px 1200px max-width
max Width1200px
header Height64px
sidebar Width0px
gap16px
container Padding24px
08

Responsive — real breakpoints

6 media-query stops read from the live CSS

640px
768px
809px
810px
1024px
1199px
09

Do's & Don'ts

14 enforceable rules pulled verbatim from the spec

Do
Use Off-White (`#f4f4f4`) as the page background — it's intentionally not pure white
Keep font weights between 400-600 — the system uses a narrow weight range for subtle hierarchy
Use the extracted shadow patterns for elevation — they are tuned to match the brand palette
Use full-pill radius (9999px) only for specific elements (avatars, pills, toggles)
Use #7826b1 (`#7826b1`) as the primary accent — it's the brand's signature interactive color
Respect the 6px–48px spacing range — the design uses a wide scale for visual breathing room
Each card uses an icon (not photo) — the visual language is illustrative, not photographic
Use a 3-column grid on desktop — density matters for this content type
Build a content-dense footer (4 columns, ~53 links) — this site treats the footer as a sitemap, not an afterthought
Don't
Don't use pure white (`#ffffff`) as a page background — the warm tone is part of the brand identity
Don't use weight 700 (bold) or above — 600 is the maximum weight in this system
Don't invent new shadow values — use only the extracted shadow levels
Don't apply pill radius on rectangular buttons or cards — it's reserved for specific interactive elements
Don't introduce additional saturated accent colors — the palette is intentionally controlled
10

Agent guide & export

Paste-ready prompt + the real files behind this page

Build a UI in the cal.com design system. Canvas #f4f4f4 · ink #111111 · accent #7826b1. Type: Cal Sans UI Variable Light — respect the size/weight ladder in §3. Radius, spacing, shadow: use only the extracted scales (no magic numbers). Full spec follows — paste the DESIGN.md below into your agent.
Every value above was getComputedStyle-verified.
A · InstrumentB · Press