Shade - Super easy color contrast insights and recommendations
Contrast - A macOS app for quick access to WCAG color contrast ratios
Color Safe - Find accessible color palettes based on WCAG Guidelines
Color Contrast Cool - Tool to check color contrast as per in dev WCAG 3 APCA
Contrast for Figma - Check color contrast against images, gradients, and solids.
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!