Velorex.
Velorex Colour Palette & Contrast Checker
All Essentials

Free · Development preview

Velorex Colour Palette & Contrast Checker

Free palettes and WCAG contrast checks, worked out on your device.

Open Colour & Contrast

Free · Local · No account. Runs in your browser; nothing is uploaded.

How to use

  1. 01Pick two colours
  2. 02Read the checks
  3. 03Fix what fails
  4. 04Build a palette
  5. 05Export or save

Step by step

HOW TO USE IT.

5 steps, from opening Colour Palette & Contrast Checker to saving your result.

  1. 1

    Pick two colours

    Choose a text colour and a background with the picker, a hex code, rgb() or hsl().

  2. 2

    Read the checks

    See the WCAG 2.2 contrast ratio and whether it passes AA and AAA for text and UI parts.

  3. 3

    Fix what fails

    Use a suggested colour with the same hue that passes, for the text or the background.

  4. 4

    Build a palette

    Start from one colour, choose a palette type, lock the colours you like and generate the rest.

  5. 5

    Export or save

    Check the contrast grid and vision previews, then export CSS, SCSS, Tailwind, JSON or SVG, or save it on this device.

Open Colour & Contrast

What it does

BUILT TO BE USEFUL.

  1. 01

    Check text and background contrast against WCAG 2.2 with one-click fixes, build palettes from one colour, grade every pair in a contrast grid, preview colour-vision differences and export CSS, SCSS, Tailwind, JSON or SVG.

Your data

STAYS WITH YOU.

  • Free

  • Local

  • No account

Availability

FREE TO USE NOW.

The browser edition is a free development preview. Offline Windows editions are being built. Software downloads remain Coming Soon.

Open Colour & ContrastSend feedback

Compatibility & limits

Development preview. Up to 12 colours per palette and 30 saved palettes; palette files up to 256 KB. WCAG 2.2 sRGB contrast only: no APCA, transparency, gradients or text over images. Vision previews are approximations.

  • BrowserFree · Open now
  • WindowsComing Soon

Questions

GOOD TO KNOW.

Is Colour Palette & Contrast Checker free?

Yes. Velorex Colour Palette & Contrast Checker is free to use in your browser, with no account. It is a development preview from Velorex Essentials.

Does Colour Palette & Contrast Checker upload my files?

No. It works on your device (free · local · no account); your files and data are not sent to Velorex.

What are the limits of Colour Palette & Contrast Checker?

Development preview. Up to 12 colours per palette and 30 saved palettes; palette files up to 256 KB. WCAG 2.2 sRGB contrast only: no APCA, transparency, gradients or text over images. Vision previews are approximations.

Is there a Windows app?

Offline Windows editions are being built. Software downloads remain Coming Soon.

How do I use Colour Palette & Contrast Checker?

1. Pick two colours: Choose a text colour and a background with the picker, a hex code, rgb() or hsl(). 2. Read the checks: See the WCAG 2.2 contrast ratio and whether it passes AA and AAA for text and UI parts. 3. Fix what fails: Use a suggested colour with the same hue that passes, for the text or the background. 4. Build a palette: Start from one colour, choose a palette type, lock the colours you like and generate the rest. 5. Export or save: Check the contrast grid and vision previews, then export CSS, SCSS, Tailwind, JSON or SVG, or save it on this device.

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