Color Palette Generator - Enter the URL of an image and find its color palette
Who Can Use - WhoCanUse is a tool that brings attention and understanding to how color contrast can affect different people with visual impairments.
Klart.io Colors - A data-driven collection of beautiful color palettes 🌈
Cron Color - Free web tool for designing color palettes and checking contrasts.
Materialette - A material design color palette on macOS / Windows / Linux
Palette For Mac - A menu bar based colour contrast analyser