pota/use/color

pota/use/color bundles a small palette of color helpers: a wrapper over the browser EyeDropper API, a perceptually-uniform gradient generator, APCA-based readability helpers, validation, and a passthrough of the popular color-bits string helpers (alpha, blend, darken, lighten, getLuminance).

Exports

• eyeDropper(cb) — pick an sRGB color with the browser EyeDropper
• scale(colors, count?) — OkLab-interpolated gradient ramp
• textColor(color) — 'white' or 'black', whichever reads better
• textColorWhenBackgroundIsBlack(color) — lighten until readable on black
• textColorWhenBackgroundIsWhite(color) — darken until readable on white
• validateColor(string) — passthrough if it parses, else undefined

Re-exports from color-bits

These are re-exported from color-bits so callers don't need to install it directly:

• alpha(color, value) — set the alpha channel
• blend(background, overlay, opacity, gamma) — alpha-composite an overlay over a background
• darken(color, value) — darken a color
• lighten(color, value) — lighten a color
• getLuminance(color) — relative luminance as a number