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Color tools for picking a palette you can defend

Seven tools for building a palette and proving it works: ramp generators, an AI trained on your taste, contrast checks and color-first references.

7 products · Aug 5, 2026

Picking colors is the easy half. The hard half is a ramp that holds up across a whole interface, and a contrast score you can show in a review.

This list runs in the order the work actually happens: find a direction, build the ramp, check it, then hand it over. Most of it is free and runs in a browser.

  1. 1

    Khroma▲ 6

    AI color tool trained on the palettes you like

    Khroma

    Teach it your taste once, it generates inside it forever

    You rate fifty colors, and it learns the space you like. Personalization done years before every tool started claiming it, and it is still the fastest way out of a blank palette.

    Pros

    • Output matches your taste, not a trend
    • Good starting point when the brief is empty
    • Free

    Cons

    • The training pass takes a few minutes up front
    • It suggests pairs, it does not build a full system
  2. 2

    Super Color Palette▲ 7

    Palette generator by hue, saturation and lightness, free and ad-free

    Super Color Palette

    Shifts a whole ramp instead of picking swatches one by one

    Generate by hue, saturation and lightness and the entire scale moves together, which is how a palette stays coherent. Ad-free is stated up front, and in this category that is now a differentiator.

    Pros

    • Ramp-level control, not swatch by swatch
    • Free and ad-free
    • Fast to export

    Cons

    • No semantic naming or token output
    • Interface assumes you know HSL
  3. 3

    Ramps▲ 6

    OKLCH color ramps and semantic tokens an agent can read

    Ramps

    OKLCH ramps and semantic tokens a coding agent can read

    Palettes come out as plain text and JSON, built for handoff to an agent rather than to a human with a color picker. The first color tool that treats the agent as the real consumer, which is where a lot of front-end work now starts.

    Pros

    • OKLCH, so perceived lightness stays even
    • Token output, ready for a design system
    • Made for agent and code handoff

    Cons

    • Only pays off if you work in tokens
    • Newer and narrower than the classic pickers
  4. 4

    Colorable▲ 0

    Contrast test for a color combination, scored against WCAG

    Colorable

    The fastest answer to does this pass WCAG

    Ten years old and still the quickest contrast check on the web. It never grew features, which is exactly why it still opens instantly and still gets used.

    Pros

    • Instant WCAG scoring for a pair
    • No account, no clutter
    • Stable for a decade

    Cons

    • One pair at a time, no whole-palette audit
    • Nothing beyond contrast
  5. 5

    Photo Gradient▲ 0

    Builds a gradient from colors or straight from a photo

    Photo Gradient

    Pulls the palette straight out of a photo

    Drop an image in, get the gradient and the colors behind it. This is how brand gradients get made in practice: someone finds a photo they like and works backwards from it.

    Pros

    • Image to palette in one step
    • Good bridge between photography and UI color
    • Free, no account

    Cons

    • Result depends entirely on the source photo
    • No contrast or accessibility checks
  6. 6

    Webzooo▲ 7

    Website inspiration organized by brand color and hex

    Webzooo

    Website references sorted by brand color and hex

    Color as the primary filter is a real insight, because that is how the brief usually arrives. When the client says the brand is orange, this is faster than scrolling a general gallery.

    Pros

    • Search by hex, which no general gallery does
    • Shows a color working across a whole site
    • Free

    Cons

    • Inspiration only, nothing to export
    • Smaller library than the big galleries
  7. 7

    delphitools▲ 0

    Privacy-first browser tools: palettes, QR, cropping, PDF preflight

    delphitools

    Palettes, cropping and file work that never leaves your browser

    A set of small utilities that run locally: no upload, no login, no collection. For anything touching a client file, that stance is a real reason to switch rather than a marketing line.

    Pros

    • Everything runs on your machine
    • No accounts anywhere
    • Covers palettes, QR, cropping and PDF preflight

    Cons

    • Utility set, not a deep color tool
    • Interface is plain by design

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