Color Palette Generator - Enter the URL of an image and find its color palette
Site Palette - Get the essential colours from any website
Sketch Palettes - Sketch plugin to save and load colors into the color picker
Material Palette - Generate and export your Material Design color palette
AI Colors - Generate unique colour palettes from a text prompt.
Colour Contrast Analyser - TPGi's ADA Color Contrast Checker checks for helps determine the accessibility the contrast ratio of two colors for WCAG AA and AAA.