#C73731#C73731

#C73731 is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.4% C 0.182 H 27.3°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#C73731
RGB	rgb(199, 55, 49)
HSL	hsl(2, 60%, 49%)
HSV	hsv(2, 75%, 78%)
CMYK	cmyk(0%, 72.4%, 75.4%, 22%)
CIE-LAB	lab(45.77, 56.13, 37.46)
CIE-LCH	lch(45.77, 67.48, 33.72°)
OKLab	oklab(55.41% 0.1617 0.0835)
OKLCH	oklch(55.41% 0.182 27.3)
XYZ	xyz(25.4767, 15.1001, 4.4783)
Luminance	0.1510 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C73731 #31C1C7

analogous

#C73176 #C73731 #C78231

triadic

#C73731 #31C737 #3731C7

tetradic

#C73731 #76C731 #31C1C7 #8231C7

square

#C73731 #76C731 #31C1C7 #8231C7

split-complementary

#C73731 #31C782 #3176C7

monochromatic

#651C19 #962925 #C73731 #D7635E #E3928F

Accessibility & contrast

On white

5.22

#C73731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#C73731 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C73731

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C73731	#FFFFFF	#000000	##FFFFFF
##C73731	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#62582F

Deuteranopia (green-blind)

#85782B

Tritanopia (blue-blind)

#DB0037

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c73731;
/* rgb */ color: rgb(199, 55, 49);
/* oklch */ color: oklch(55.4% 0.182 27.3);

Tailwind

colors: {
  custom: {
    50: '#e1786a',
    500: '#c73731',
    950: '#000000',
  },
}

SCSS

$custom: #c73731;
$custom-light: #e1786a;
$custom-dark: #000000;

JSON

{
  "hex": "#c73731",
  "rgb": {
    "r": 199,
    "g": 55,
    "b": 49
  },
  "hsl": {
    "h": 2.4,
    "s": 60.484,
    "l": 48.627
  },
  "oklch": {
    "l": 0.55411,
    "c": 0.18194,
    "h": 27.3
  },
  "luminance": 0.15096
}

Semantic roles & 50–950 ramp

primary

#C73731

secondary

#86CBCE

accent

#DDE444

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #C73731

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →