About this tool
Convert a supported colour representation and inspect the displayed text-to-background contrast calculation. Review the actual foreground and background pair used in the design rather than testing a colour in isolation.
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
मुख्य इनपुट और नियंत्रण हिंदी में देखने के लिए ऊपर “🇮🇳 हिंदी में देखें” चुनें। गणना और फ़ाइल प्रोसेसिंग इसी ब्राउज़र टैब में होती है; टूल आपके इनपुट हमारी होस्टिंग पर नहीं भेजता।
Features
- Work with Color HEX Code.
- Review HEX; RGB; HSL in the result breakdown.
Benefits
- Compare common colour-code formats.
- Check a proposed foreground-and-background contrast pair.
Who should use this tool?
- Designers reviewing interface colours.
- Developers checking a colour-conversion example.
How to use
- Complete the labelled fields for your scenario, including Color HEX Code. Use the units shown beside each field.
- Try the example labelled “Royal Blue (#1D4ED8 → rgb(29, 78, 216))” if you want to check the workflow first.
- Select Calculate / Run Tool and review Converted Color Models & WCAG Contrast and HEX; RGB.
- Check the assumptions and limitations below. Adjust a value to compare scenarios, then copy or download the result you need.
Try these worked examples
| Scenario | Example inputs | Example result |
|---|---|---|
| Royal Blue (#1D4ED8 → rgb(29, 78, 216)) | Color HEX Code: #1D4ED8 | #1D4ED8 | rgb(29, 78, 216) | hsl(224, 76%, 48%) |
| Saffron Orange (#EA580C → rgb(234, 88, 12)) | Color HEX Code: #EA580C | #EA580C | rgb(234, 88, 12) | hsl(21, 90%, 48%) |
Reference and processing
W3C CSS Color Module Level 4 & WCAG 2.1 Relative Luminance Formula · Listed applicability: 2025-2026
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
FAQs
Does one passing contrast pair make the whole page accessible?
Contrast is one part of accessibility. Font size, focus visibility, control boundaries, state changes and other page content also need appropriate review and testing.
Which inputs do I need for Color Converter (HEX ↔ RGB ↔ HSL ↔ CMYK) & WCAG Contrast Checker?
Use Color HEX Code. The built-in examples show how those fields fit together.
What should I check before using this result?
Accepts 6-digit `#RRGGBB` or 3-digit `#RGB` hex codes. Check the assumptions and output against your intended task before relying on the result.
What happens to the information I enter?
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server. Tool favourites save only tool IDs in this browser. Sharing sends the tool link, not your working values or files.