Codeium UI Skills

Opinionated constraints for building Codeium-style interfaces with AI agents.

When to Apply

Reference these guidelines when:

• Building dark-mode interfaces

• Creating Codeium-inspired design systems

• Implementing UIs with Inter font and 4px grid

Colors

• MUST use dark backgrounds (lightness < 20) for primary surfaces - detected lightness: 17

• MUST use #152443 as page background (surface-base )

• MUST use #32E5AD for primary actions and focus states (accent )

• SHOULD limit color palette to 7 distinct colors

• MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

Token HEX RGB Usage

surface-base

#152443 rgb(21,36,67) Page background

surface-raised

#32E5AD rgb(50,229,173) Cards, modals, raised surfaces

text-primary

#ACB9C8 rgb(172,185,200) Headings, body text

text-secondary

#136045 rgb(19,96,69) Secondary, muted text

text-tertiary

#CED5DB rgb(206,213,219) Additional text

border-default

#253453 rgb(37,52,83) Subtle borders, dividers

accent

#32E5AD rgb(50,229,173) Primary actions, links, focus

Typography

• MUST use Inter as primary font family

• SHOULD use single font family for consistency

• MUST use 77px / 700 for primary headings

• MUST use 20px / 400 for body text

• MUST limit font weights to: regular, bold

• MUST use text-balance for headings and text-pretty for body text

• SHOULD use tabular-nums for numeric data

• NEVER modify letter-spacing unless explicitly requested

Text Styles

Style Font Size Weight Color Count

heading-1

Inter 77px 700 #CED5DB 1

body

Inter 20px 400 #ACB9C8 1

body-secondary

Inter 20px 400 #B4BEC9 1

text-17px

Inter 17px 400 #B2BDCB 1

text-14px

Inter 14px 400 #136045 1

text-13px

Inter 13px 400 #A0ACBE 1

caption

Inter 10px 400 #146F50 1

label

Inter 10px 400 #A7B3C2 1

label

Inter 10px 400 #A1ADBD 1

label

Inter 10px 400 #A9B6C4 1

Typography Reference

Font Families:

• Inter (used 13x)

Font Sizes: 10px, 13px, 14px, 17px, 20px, 77px

Spacing

• MUST use 4px grid for spacing

• SHOULD use spacing from scale: 5px, 6px, 16px, 29px, 42px

• SHOULD use 6px as default gap between elements

• NEVER use arbitrary spacing values (use design scale)

• SHOULD maintain consistent padding within containers

Borders

• MUST use 1px border width consistently

• NEVER use arbitrary border-radius values (use design scale)

• SHOULD use subtle borders (1px) for element separation

Layout

• MUST design for 1920px base viewport width

• SHOULD use consistent element widths: 6px, 157px, 74px

• SHOULD maintain text-heavy layout with clear hierarchy

• NEVER use h-screen , use h-dvh for full viewport height

• MUST respect safe-area-inset for fixed elements

• SHOULD use size-* for square elements instead of w-*

• h-*

Detected Layout Patterns

• Main Content: width: 1920px, height: 1080px

• Main Content: width: 1920px, height: 802px

• Header: height: 84px

Components

Buttons

Variant Background Text Border Height Radius

Ghost transparent #B2BDCB none

Interactive States

Focus

• MUST use 2px outline with accent color (#32E5AD )

• MUST use 2px outline-offset

• NEVER remove focus indicators

Hover

• Buttons (primary): lighten background by 10%

• Buttons (secondary): use #32E5AD background

• List items: use #32E5AD background

Disabled

• MUST use opacity: 0.5

• MUST use cursor: not-allowed

Interaction

• MUST use an AlertDialog for destructive or irreversible actions

• SHOULD use structural skeletons for loading states

• MUST show errors next to where the action happens

• NEVER block paste in input or textarea elements

• MUST add an aria-label to icon-only buttons

Animation

• NEVER add animation unless it is explicitly requested

• MUST animate only compositor props (transform , opacity )

• NEVER animate layout properties (width , height , top , left , margin , padding )

• SHOULD use ease-out on entrance animations

• NEVER exceed 200ms for interaction feedback

• SHOULD respect prefers-reduced-motion

Performance

• NEVER animate large blur() or backdrop-filter surfaces

• NEVER apply will-change outside an active animation

• NEVER use useEffect for anything that can be expressed as render logic