Analogous Color Scheme Generator
Create harmonious neighboring-hue palettes around a base color.
Related
Accessible Contrast Fixer
Adjust a foreground color's lightness until it meets a WCAG contrast target.
Color
Accessible Text Color Picker
Decide whether black or white text is more readable on any background color.
Color
Alpha Blend Over Background
Compute the solid opaque color produced by a translucent color over a background.
Color
ANSI 256-Color to RGB
Map xterm 256-color palette indices to RGB hex and back to the nearest index.
Color