#E31C1C
Vivid Red
#E31C1C is the CSS named color "crimson", an exact match. In RGB it breaks down to red 227, green 28, and blue 28 out of 255 each. In HSL terms that's a hue of 0°, 78% saturation, and 50% lightness: a mid-tone — usable as an accent for buttons, links, and icons against either a light or dark background.
Every format
| HEX | #e31c1c |
| RGB | rgb(227, 28, 28) |
| HSL | hsl(0° 78% 50%) |
| HSB | hsb(0° 88% 89%) |
| OKLCH | oklch(58% 0.227 28°) |
| OKLAB | oklab(58% 0.200 0.107) |
| LCH | lch(49% 90.0 38°) |
| CMYK | cmyk(0% 88% 88% 11%) |
Shades (darker)
#e31c1c · #d20002 · #c10000 · #b00000 · #9f0000
Tints (lighter)
#e31c1c · #f2322c · #ff443a · #ff5448 · #ff6355
Shades mix #E31C1C toward black in even steps, useful for hover and pressed states in a UI; tints mix it toward white, useful for subtle backgrounds and disabled states that still read as the same color family.
On white: 4.72:1 — AA
On black: 4.45:1 — AA (large text only)
Frequently asked
- What is #E31C1C in RGB?
- #E31C1C is rgb(227, 28, 28) — red 227, green 28, blue 28 out of 255 each.
- Does #E31C1C pass WCAG contrast on a white background?
- It has a contrast ratio of 4.72:1 against white, which passes WCAG AA for normal text.
- What's a good background color to pair with #E31C1C?
- White text or a white background gives better contrast (4.72:1) than black (4.45:1).