#C73F37#C73F37

#C73F37 is a mid, vivid red. Relative luminance 0.160; OKLCH L 56.3% C 0.174 H 27.5°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#C73F37
RGB	rgb(199, 63, 55)
HSL	hsl(3, 57%, 50%)
HSV	hsv(3, 72%, 78%)
CMYK	cmyk(0%, 68.3%, 72.4%, 22%)
CIE-LAB	lab(46.94, 53.36, 35.38)
CIE-LCH	lch(46.94, 64.02, 33.54°)
OKLab	oklab(56.31% 0.1542 0.0803)
OKLCH	oklch(56.31% 0.174 27.5)
XYZ	xyz(26.0231, 15.9768, 5.3272)
Luminance	0.1597 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C73F37 #37BFC7

analogous

#C73777 #C73F37 #C78737

triadic

#C73F37 #37C73F #3F37C7

tetradic

#C73F37 #77C737 #37BFC7 #8737C7

square

#C73F37 #77C737 #37BFC7 #8737C7

split-complementary

#C73F37 #37C787 #3777C7

monochromatic

#67211C #97302A #C73F37 #D56D66 #E29B96

Accessibility & contrast

On white

5.01

#C73F37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#C73F37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C73F37

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C73F37	#FFFFFF	#000000	##FFFFFF
##C73F37	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655D35

Deuteranopia (green-blind)

#877A32

Tritanopia (blue-blind)

#DB143E

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c73f37;
/* rgb */ color: rgb(199, 63, 55);
/* oklch */ color: oklch(56.3% 0.174 27.5);

Tailwind

colors: {
  custom: {
    50: '#e07c6e',
    500: '#c73f37',
    950: '#000000',
  },
}

SCSS

$custom: #c73f37;
$custom-light: #e07c6e;
$custom-dark: #000000;

JSON

{
  "hex": "#c73f37",
  "rgb": {
    "r": 199,
    "g": 63,
    "b": 55
  },
  "hsl": {
    "h": 3.333,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.56311,
    "c": 0.17385,
    "h": 27.5
  },
  "luminance": 0.15973
}

Semantic roles & 50–950 ramp

primary

#C73F37

secondary

#8CCACD

accent

#D8E048

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C73F37

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

Preview Lab → · Contrast checker → · Palette generator →