Codeium UI Skills
Opinionated constraints for building Codeium-style interfaces with AI agents.
When to Apply
Reference these guidelines when:
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Building dark-mode interfaces
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Creating Codeium-inspired design systems
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Implementing UIs with Inter font and 4px grid
Colors
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MUST use dark backgrounds (lightness < 20) for primary surfaces - detected lightness: 17
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MUST use #152443 as page background (surface-base )
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MUST use #32E5AD for primary actions and focus states (accent )
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SHOULD limit color palette to 7 distinct colors
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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
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MUST use Inter as primary font family
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SHOULD use single font family for consistency
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MUST use 77px / 700 for primary headings
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MUST use 20px / 400 for body text
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MUST limit font weights to: regular, bold
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MUST use text-balance for headings and text-pretty for body text
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SHOULD use tabular-nums for numeric data
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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
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MUST use 4px grid for spacing
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SHOULD use spacing from scale: 5px, 6px, 16px, 29px, 42px
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SHOULD use 6px as default gap between elements
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NEVER use arbitrary spacing values (use design scale)
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SHOULD maintain consistent padding within containers
Borders
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MUST use 1px border width consistently
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NEVER use arbitrary border-radius values (use design scale)
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SHOULD use subtle borders (1px) for element separation
Layout
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MUST design for 1920px base viewport width
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SHOULD use consistent element widths: 6px, 157px, 74px
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SHOULD maintain text-heavy layout with clear hierarchy
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NEVER use h-screen , use h-dvh for full viewport height
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MUST respect safe-area-inset for fixed elements
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SHOULD use size-* for square elements instead of w-*
- h-*
Detected Layout Patterns
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Main Content: width: 1920px, height: 1080px
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Main Content: width: 1920px, height: 802px
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Header: height: 84px
Components
Buttons
Variant Background Text Border Height Radius
Ghost transparent #B2BDCB none
Interactive States
Focus
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MUST use 2px outline with accent color (#32E5AD )
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MUST use 2px outline-offset
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NEVER remove focus indicators
Hover
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Buttons (primary): lighten background by 10%
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Buttons (secondary): use #32E5AD background
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List items: use #32E5AD background
Disabled
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MUST use opacity: 0.5
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MUST use cursor: not-allowed
Interaction
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MUST use an AlertDialog for destructive or irreversible actions
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SHOULD use structural skeletons for loading states
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MUST show errors next to where the action happens
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NEVER block paste in input or textarea elements
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MUST add an aria-label to icon-only buttons
Animation
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NEVER add animation unless it is explicitly requested
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MUST animate only compositor props (transform , opacity )
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NEVER animate layout properties (width , height , top , left , margin , padding )
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SHOULD use ease-out on entrance animations
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NEVER exceed 200ms for interaction feedback
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SHOULD respect prefers-reduced-motion
Performance
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NEVER animate large blur() or backdrop-filter surfaces
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NEVER apply will-change outside an active animation
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NEVER use useEffect for anything that can be expressed as render logic