Khroma - The AI color tool for designers

Sip Color for Mac

Color Palette Generator - Create Beautiful Color Schemes

Color Tool - Material Design

Colors - A nicer color palette for the web.

Coolors - The super fast color schemes generator!

Palettable

Colour Contrast Analyser (CCA)

‎Contrast - Color Accessibility

Hex Naw | A color accessibility tool built by The Scenery.

Spectrum