#C73B37#C73B37

#C73B37 is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.9% C 0.178 H 26.4°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#C73B37
RGB	rgb(199, 59, 55)
HSL	hsl(2, 57%, 50%)
HSV	hsv(2, 72%, 78%)
CMYK	cmyk(0%, 70.4%, 72.4%, 22%)
CIE-LAB	lab(46.38, 54.91, 34.73)
CIE-LCH	lch(46.38, 64.97, 32.31°)
OKLab	oklab(55.89% 0.1591 0.0789)
OKLCH	oklch(55.89% 0.178 26.4)
XYZ	xyz(25.8096, 15.5497, 5.2561)
Luminance	0.1555 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C73B37 #37C3C7

analogous

#C7377B #C73B37 #C78337

triadic

#C73B37 #37C73B #3B37C7

tetradic

#C73B37 #7BC737 #37C3C7 #8337C7

square

#C73B37 #7BC737 #37C3C7 #8337C7

split-complementary

#C73B37 #37C783 #377BC7

monochromatic

#671F1C #972D2A #C73B37 #D56966 #E29896

Accessibility & contrast

On white

5.11

#C73B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#C73B37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C73B37

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C73B37	#FFFFFF	#000000	##FFFFFF
##C73B37	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B35

Deuteranopia (green-blind)

#867932

Tritanopia (blue-blind)

#DB053C

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c73b37;
/* rgb */ color: rgb(199, 59, 55);
/* oklch */ color: oklch(55.9% 0.178 26.4);

Tailwind

colors: {
  custom: {
    50: '#e07a6e',
    500: '#c73b37',
    950: '#000000',
  },
}

SCSS

$custom: #c73b37;
$custom-light: #e07a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#c73b37",
  "rgb": {
    "r": 199,
    "g": 59,
    "b": 55
  },
  "hsl": {
    "h": 1.667,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55888,
    "c": 0.17755,
    "h": 26.4
  },
  "luminance": 0.15546
}

Semantic roles & 50–950 ramp

primary

#C73B37

secondary

#8CCCCD

accent

#DCE048

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C73B37

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

Preview Lab → · Contrast checker → · Palette generator →