Most palette generators hand you five pretty colors and stop there — whether text on that background actually meets WCAG contrast is left for you to check separately, usually after the palette is already picked. These four build the check into the generation step, so a palette that fails accessibility never makes it out in the first place.
Generates palettes and shows a pass/fail contrast indicator between the swatches you'd actually pair as text-on-background, not just a generic side-by-side.
You pick colors you like once; Khroma generates combinations from that trained preference with contrast filtering baked into the generation, not bolted on after.
Coolors' main palette generator doesn't check contrast automatically, but its built-in Contrast Checker tool takes any two colors from your palette and rates them against WCAG AA/AAA instantly — same tool, no separate signup.
Generates a full 50–900 shade scale (Tailwind-style) from one base color, useful when you need a text color that's guaranteed readable against ten different background shades, not just one.
A palette can look balanced on a design mockup and still fail WCAG AA (4.5:1 for normal text) once it's real text on a real background — light gray on white is the classic trap. Checking contrast during palette selection, not after the design is built, saves a redesign later. That's the actual reason to reach for one of these four over a plain random-palette generator.
For icons, fonts, and mockups to pair with an accessible palette, see the full Toolyard directory, or use the quick picker if you're not sure where to start.