Color questions, fixes and result guides.
Practical answers for common color problems, confusing results and setup questions — with a direct path back to the live test.
What is the difference between HEX, RGB and HSL?
HEX and RGB describe digital color using red, green and blue channel values, while HSL describes hue, saturation and lightness. They can represent the same color through different notation systems.
How do I check if text color has enough contrast?
Compare foreground and background colors using a WCAG contrast calculation. The tool can give quick AA/AAA references, but final accessibility also depends on text size, weight and actual interface context.
Why does the same HEX color look different on another screen?
Digital values can be identical while displays differ in gamut, calibration, brightness and color management. The numeric color is the same even if the physical appearance is not.
Can I edit HEX, RGB and HSL values?
Yes. The fields stay synchronized locally, so changing one color model updates the preview and the other representations.
What do AA and AAA contrast labels mean?
They are quick references to common WCAG contrast thresholds for normal text. Actual accessibility evaluation also depends on text size, weight and context.
How accurate is this color tool?
Displayed appearance depends on your monitor, operating system color profile and browser rendering.
What should I do if the color result looks wrong?
Enter a complete six-digit HEX value or use the numeric fields. If the displayed color differs from another device, compare monitor profiles, brightness and browser color management.