#C73837#C73837

#C73837 is a mid, vivid red. Relative luminance 0.152; OKLCH L 55.6% C 0.180 H 25.6°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#C73837
RGB	rgb(199, 56, 55)
HSL	hsl(0, 57%, 50%)
HSV	hsv(0, 72%, 78%)
CMYK	cmyk(0%, 71.9%, 72.4%, 22%)
CIE-LAB	lab(45.98, 56.02, 34.26)
CIE-LCH	lch(45.98, 65.67, 31.45°)
OKLab	oklab(55.59% 0.1626 0.0778)
OKLCH	oklch(55.59% 0.18 25.6)
XYZ	xyz(25.6598, 15.2502, 5.2061)
Luminance	0.1525 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C73837 #37C6C7

analogous

#C7377E #C73837 #C78037

triadic

#C73837 #37C738 #3837C7

tetradic

#C73837 #7EC737 #37C6C7 #8037C7

square

#C73837 #7EC737 #37C6C7 #8037C7

split-complementary

#C73837 #37C780 #377EC7

monochromatic

#671D1C #972B2A #C73837 #D56766 #E29796

Accessibility & contrast

On white

5.19

#C73837 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#C73837 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C73837

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C73837	#FFFFFF	#000000	##FFFFFF
##C73837	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615935

Deuteranopia (green-blind)

#857832

Tritanopia (blue-blind)

#DB003A

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c73837;
/* rgb */ color: rgb(199, 56, 55);
/* oklch */ color: oklch(55.6% 0.180 25.6);

Tailwind

colors: {
  custom: {
    50: '#e0796e',
    500: '#c73837',
    950: '#000000',
  },
}

SCSS

$custom: #c73837;
$custom-light: #e0796e;
$custom-dark: #000000;

JSON

{
  "hex": "#c73837",
  "rgb": {
    "r": 199,
    "g": 56,
    "b": 55
  },
  "hsl": {
    "h": 0.417,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55587,
    "c": 0.18026,
    "h": 25.6
  },
  "luminance": 0.15246
}

Semantic roles & 50–950 ramp

primary

#C73837

secondary

#8CCDCD

accent

#DFE048

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C73837

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

Preview Lab → · Contrast checker → · Palette generator →