red
- HEX
- #ff0000
- RGB
- rgb(255, 0, 0)
- HSL
- hsl(0, 100%, 50%)
- CMYK
- cmyk(0%, 100%, 100%, 0%)
- OKLCH
- oklch(62.8% 0.258 29.234)
red is a red color with a warm undertone, written #ff0000 in hexadecimal.
Quick facts
| Family | Red |
|---|---|
| Undertone | warm |
| Lightness | 50% |
| Contrast on white | 4.00 |
| Contrast on black | 5.25 |
Tints, shades and tones
Color harmonies
Accessibility
Contrast ratio against white and black, and the WCAG 2.1 text levels each one passes.
| Background | Contrast ratio | AA normal | AA large | AAA normal | AAA large |
|---|---|---|---|---|---|
| White | 4.00 | Fail | Pass | Fail | Fail |
| Black | 5.25 | Pass | Pass | Fail | Pass |
Similar colors
Sources
This name comes from the CSS color keywords.