Atmos vs Colorfool

Atmos is a color-palette tool for UI designers, offered as a web app and extension. It includes a color generator, wheel, shade generator and playground for creating and refining palettes. The playground supports LCH and OKLCH color spaces with sRGB and Display P3 gamut limits. Its contrast checker covers APCA (WCAG 3) and WCAG 2. Users can save palettes, maintain a brand color library, work with print color and share palettes with teammates. Exports include SVG, Figma, CSS, JavaScript, JSON, Tailwind CSS, Style Dictionary, Design Tokens and Raw, with HEX, HSL, RGB, CMYK, LCH and OKLCH values. Atmos provides a Figma plugin; Pro adds palette syncing with Figma. The free plan allows one project, while Pro offers unlimited projects and all features. A 14-day trial needs no credit card but limits exports to SVG. Atmos is made by RBND studio.

Colorfool is a web tool for generating, checking, previewing, and exporting color palettes. Its generator offers harmony-aware palettes, color locking, and controls for lightness and saturation. It describes harmony schemes including analogous, complementary, split-complementary, triadic, tetradic, square, and monochrome. WCAG contrast ratios and colorblind simulation are available on every palette, and the palette preview applies colors to a hero, dashboard, buttons, and a form. Export formats include CSS, SCSS, Tailwind, Figma/Tokens, JSON, Sketch, CMYK, PNG, ASE,.sketchpalette,.swatches, and PPTX. The AI generator takes a mood, theme, or object description and allows conversational refinements. An image scanner extracts colors in the browser; the site says images are not uploaded. A separate scanner accepts an image or live website URL. The style guide generator creates a one-page brand guide with color roles, accessible pairings, and usage notes for printing or saving as PDF. Colorfool is presented for solo users and teams handing off a shared brand system. The free plan is listed at free, with no paywalled accessibility checks.