Rippling UI Skills

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

When to Apply

Reference these guidelines when:

• Building dark-mode interfaces

• Creating Rippling-inspired design systems

• Implementing UIs with Inter font and 4px grid

Colors

• MUST use dark backgrounds (lightness < 20) for primary surfaces - detected lightness: 0

• MUST use #000000 as page background (surface-base )

• MUST use #FDF6FD for primary actions and focus states (accent )

• SHOULD reduce color palette (currently 13 colors detected)

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

Semantic Tokens

Token HEX RGB Usage

surface-base

#000000 rgb(0,0,0) Page background

surface-raised

#FD9717 rgb(253,151,23) Cards, modals, raised surfaces

surface-overlay

#FEFEFE rgb(254,254,254) Overlays, tooltips, dropdowns

text-primary

#8D8884 rgb(141,136,132) Headings, body text

text-secondary

#23201F rgb(35,32,31) Secondary, muted text

text-tertiary

#713C12 rgb(113,60,18) Additional text

border-default

#F9E2C1 rgb(249,226,193) Subtle borders, dividers

accent

#FDF6FD rgb(253,246,253) Primary actions, links, focus

destructive

#713C12 rgb(113,60,18) Error states, delete actions

warning

#FD9717 rgb(253,151,23) Warning states, cautions

Typography

• MUST use Inter as primary font family

• SHOULD use single font family for consistency

• MUST use 43px / extra_bold for primary headings

• MUST use 16px / 400 for body text

• SHOULD reduce font weights (currently 5 detected)

• 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 43px extra_bold #E6DAE8 1

heading-2

Inter 39px 700 #23201F 1

body

Inter 16px 400 #8D8884 1

body-secondary

Inter 16px 400 #93619F 1

body-secondary

Inter 14px 400 #965D9D 1

body-secondary

Inter 14px 400 #9563A1 1

body-secondary

Inter 14px 400 #CBA8CF 1

body-secondary

Inter 14px 400 #C9A9CD 1

body-secondary

Inter 14px 400 #C8ABCD 1

body-secondary

Inter 14px 400 #D2AED3 1

Typography Reference

Font Families:

• Inter (used 27x)

Font Sizes: 10px, 11px, 12px, 13px, 14px, 16px, 39px, 43px

Spacing

• MUST use 4px grid for spacing

• SHOULD use spacing from scale: 2px, 3px, 5px, 15px, 71px

• SHOULD use 2px as default gap between elements

• NEVER use arbitrary spacing values (use design scale)

• SHOULD maintain consistent padding within containers

Borders

• SHOULD limit border widths to: 1px, 5px

• 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: 14px, 8px, 22px, 506px, 24px

• 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: 788px

• Main Content: width: 1920px, height: 717px

• Header: height: 70px

Components

Buttons

Variant Background Text Border Height Radius

Ghost transparent #713C12 none

Interactive States

Focus

• MUST use 2px outline with accent color (#FDF6FD )

• MUST use 2px outline-offset

• NEVER remove focus indicators

Hover

• Buttons (primary): lighten background by 10%

• Buttons (secondary): use #FD9717 background

• List items: use #FD9717 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