Red #FF0000
Explore this color’s values, contrast with black and white, variations and useful relationships.
Color values
- HEX
- RGB
- rgb(255, 0, 0)
- HSL
- hsl(0, 100%, 50%)
- CMYK
- 0%, 100%, 100%, 0%
Contrast and readability
- Relative luminance
- 0.213
- Contrast with white
- 3.99:1AA large text
- Contrast with black
- 5.26:1AA text, AA large text, AAA large text
- Higher-contrast foreground
- #000000
These WCAG results apply only to the tested color pairs and text-size thresholds. They do not establish accessibility compliance for an entire UI.
Tints and shades
Tints
- 20%:
- 40%:
- 60%:
- 80%:
Shades
- 20%:
- 40%:
- 60%:
- 80%:
Color relationships
Complementary
- Complement:
Analogous
- Analogous 1:
- Analogous 2:
Triadic
- Triadic 1:
- Triadic 2:
Use this color in CSS
color: #FF0000;
background-color: #FF0000;