ProToolBox

Free Color Palette Generator Online — Live Swatches, Styles & Copy

Pick a base color below—choose a palette style, watch live swatches, copy a HEX list or CSS variables. No upload, no signup, no watermark.

Build coordinated color palettes online

Turn one brand anchor into five coordinated HEX swatches—shades, tints, analogous hues, or triadic accents for UI kits, decks, and CSS tokens.

1 Pick base color · 2 Choose style · 3 Review swatches · 4 Copy HEX or CSS

Your palette

Try #2563EB or shorthand #26B; the preview updates when the value is valid. Need WCAG ratios? Use the contrast checker.

Runs in this tab only—no server upload, no signup, no watermark.

Pick a valid HEX to see swatches, style, and base color.

Your five swatches will show here.

Adjust the picker or type a HEX—live in your browser, no upload. Try Shades & tints first for a neutral ramp.

Next: Check contrast · Build a gradient · Explore harmonies · All design tools · All tools

  • Works in your browser—runs on your device, not our servers
  • No upload required—your input stays in this tab
  • Free and instant
  • No account needed
  • Private by default—the same ProToolbox promise on every page

What this is for

Free Color Palette Generator Online — Live Swatches, Styles & Copy supports accessible color work: works in your browser, free and instant. Contrast, hex/RGB, palettes, gradients—check before handoff or component merges.

  • Re-check after token or theme updates
  • Capture values for docs and CSS variables
  • Iterate next to your design file
  • Document AA vs AAA when asked

Together: This supplements Figma or Penpot—not a replacement for design judgment.

Bookmark for UI work: generate swatches here, then hop to contrast or gradients without losing your flow.

Color palette generator — overview

Use it for brand kits, landing pages, and slide decks when you need five related HEX codes from a single anchor color. Switch between shade/tint ramps, analogous hues, or triadic sets; copy plain text or CSS custom properties for handoff to Figma or code.

How it works

  1. Pick a base with the color input or type #RGB / #RRGGBB.
  2. Choose a palette style—the large swatch row updates live.
  3. Copy the HEX list or CSS variables, then validate contrast or build gradients next.

Privacy: Swatches are calculated in your browser. We do not upload your colors or store palettes on our servers.

FAQ

  • Which style should I start with? Shades & tints keeps your hue and builds a neutral ramp; use Analogous or Triadic when you want related hues.
  • Do I need an account? No—free, no registration.
  • Mobile friendly? Yes—the picker, HEX field, and swatch row work on phones and tablets.
  • Production CSS? Yes—paste copied HEX or the CSS variables block into stylesheets or tokens.

Save this tab for repeat brand work—same URL, same instant local preview.

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