designlang
Brand guidelines #0000ee

June 25, 2026

cal.com

A reading of the visual language at https://cal.com. Every token, every rule, every component — captured from the live site.

Page intent
landing
System grade
C 78/100
Tokens
26 colours · 11 sizes
Generated
designlang
Chapter 00

Essence

cal.com is an Outlaw brand — cool, kinetic, bold, modern and rebellious — anchored on #0000ee and Inter, mixed motion.

Outlaw archetype · 64% fit · vs Magician

Adjectives

Personality axes

Cool Warm
Composed Kinetic
Understated Bold
Timeless Modern

Evidence

Chapter 01

About

Page intent
landing 45% confidence
Material language
material-you
Imagery style
mixed
Component library
vuetify
Stack
framer
Voice tone
neutral
Chapter 03

Colour

1 primary · 1 secondary · 1 accent · 14 neutrals · 26 total

Primary #0000EE
RGB
0, 0, 238
HSL
240°, 100%, 47%
Secondary #0099FF
RGB
0, 153, 255
HSL
204°, 100%, 50%
Accent #D6ECFE
RGB
214, 236, 254
HSL
207°, 95%, 92%

Neutrals

#000000
#242424
#898989
#E5E7EB
#FFFFFF
#111111
#F4F4F4
#374151
#D3D3D3
#808080
#4C5A70
#6B7280

Full palette

#000000
#0000EE
#242424
#898989
#E5E7EB
#FFFFFF
#111111
#F4F4F4
#374151
#D3D3D3
#808080
#4C5A70
#0EA5E9
#6701E6
#6B7280
#9CA3AF
#0099FF
#7826B1
#AA61F1
#E9DDFD
#882C2F
#D85B5F
#0261A2
#F8D7D8
#D6ECFE
#767676

WCAG 100% · 2 passing pairs · 0 failing. Full breakdown in §11.

Chapter 04

Typography

9 families · 11 sizes · 4 weights

Display
Inter
Body
Cal Sans UI Variable Light
Weights
400, 300, 500, 600

Specimen

Quick brown fox jumps over the lazy dog.
AaBbCc 0123456789 ?!&

Scale

StepSizeSample
t00 64px Quick brown fox jumps over t
t01 48px Quick brown fox jumps over t
t02 24px Quick brown fox jumps over t
t03 20px Quick brown fox jumps over t
t04 18px Quick brown fox jumps over t
t05 16px Quick brown fox jumps over t
t06 14px Quick brown fox jumps over t
t07 12px Quick brown fox jumps over t
t08 10px Quick brown fox jumps over t
t09 9.71px Quick brown fox jumps over t
Chapter 05

Spacing

Base 4px · 5 steps captured

Rhythm

1px
40px
48px
80px
96px
Chapter 06

Shape

11 radii · 6 elevation tiers

Border radii

2px
6px
10px
16px
29px
40px

Elevation

xs
sm
md
lg
xl
2xl
Chapter 07

Iconography

unknown · 24 captured

Library
unknown
Confidence
0%
Stroke style
fillDominant
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
icon
Chapter 08

Motion

Feel: mixed · 1 durations · 1 easings

Duration scale

300ms

Easings

Chapter 09

Components

vuetify · 0 component patterns captured

Mocks

Card

Built from these tokens

Radius, primary, surface, text — all sampled from the live site.

Read more →
Chapter 10

Voice

neutral · — · —

Chapter 11

Accessibility

100% WCAG 2.1 contrast
2 passing · 0 failing

No failing contrast pairs detected.

Chapter 12

Tokens

Drop-in code for the most common stacks. All values from the live extraction.

CSS variablesvariables.css
:root {
  --color-primary: #0000ee;
  --font-display: "Inter";
  --space-base: 4px;
  --radius-md: 6px;
}
Tailwind configtailwind.config.js
// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: { brand: '#0000ee' },
      fontFamily: { display: ['Inter', 'serif'] },
      spacing: { base: '4px' },
      borderRadius: { md: '6px' },
    },
  },
};

Run npx designlang pack cal.com for the full bundle (DTCG, shadcn, Figma vars, motion, anatomy, Storybook).

Chapter 13

Usage

  1. Lead with the primary.

    It belongs on calls-to-action and one accent moment per screen. Not on body copy.

  2. Two type families, three weights.

    Display for headlines, body for paragraphs. Resist a third unless there is a real reason.

  3. Snap to the spacing scale.

    Padding, margin, and gap should land on the values in §05. One-off pixels accumulate into noise.

  4. Treat accessibility as a hard constraint.

    When a colour pair fails WCAG, fix the colour — not the contrast check.