#E31837 Color (Hex and RGB)

#E31837

rgb(227 24 55) · reads as red

#e31837 has RGB values (227, 24, 55). The color reads primarily as red in sRGB space.

Color values

Format	Value	Channels
HEX	`#E31837`	RE3G18B37
RGB	`rgb(227 24 55)`	R227G24B55
HSL	`hsl(351 81% 49%)`	H351°S81%L49%
OKLCH	`oklch(58% 0.23 22)`	L0.58C0.23H22°
HSV	`hsv(351, 89%, 89%)`	H351°S89%V89%
CMYK	`cmyk(0%, 89%, 76%, 11%)`	C0%M89%Y76%K11%

RGB mix

Red227 89.02%
Green24 9.41%
Blue55 21.57%

Base numbers

Base	R	G	B
Binary	`11100011`	`00011000`	`00110111`
Octal	`343`	`30`	`67`
Decimal	`227`	`24`	`55`
Hex	`e3`	`18`	`37`

Shades & tints

Shades mix #E31837 with black; tints mix it with white. Click any swatch to explore it.

Shades

Tints

Color harmonies

Complementary

Opposite on the color wheel — maximum contrast.

Analogous

Neighbors 30° either side — calm and cohesive.

Triadic

Three hues spaced 120° apart — vibrant balance.

Monochromatic

Same hue and saturation, different lightness.

Similar brand colors

The closest colors from our brand palettes, measured in OKLab.

Contrast & accessibility

WCAG 2.1 contrast against white and black. Test other pairs in the contrast checker.

#E31837 on #FFFFFF

4.72:1

AA ✓AAA ✕AA Large ✓AAA Large ✓

#E31837 on #000000

4.45:1

AA ✕AAA ✕AA Large ✓AAA Large ✕

#FFFFFF on #E31837