Adjustments - Essential Figma plugin for simultaneous HSL color adjustment
Fix contrast - Automatically fix contrast issues on all websites
Token Master - Token Master is a plugin for Figma that automates your color design tokens.
Contrast - A macOS app for quick access to WCAG color contrast ratios
Color Palette Generator - Enter the URL of an image and find its color palette
Colour Contrast Checker - Check the contrast between different colour gainst WCAG