#C73739#C73739

#C73739 is a mid, vivid red. Relative luminance 0.152; OKLCH L 55.5% C 0.181 H 24.6°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#C73739
RGB	rgb(199, 55, 57)
HSL	hsl(359, 57%, 50%)
HSV	hsv(359, 72%, 78%)
CMYK	cmyk(0%, 72.4%, 71.4%, 22%)
CIE-LAB	lab(45.87, 56.47, 32.98)
CIE-LCH	lch(45.87, 65.39, 30.28°)
OKLab	oklab(55.52% 0.1644 0.0754)
OKLCH	oklch(55.52% 0.181 24.6)
XYZ	xyz(25.6608, 15.1738, 5.4478)
Luminance	0.1517 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C73739 #37C7C5

analogous

#C73781 #C73739 #C77D37

triadic

#C73739 #39C737 #3739C7

tetradic

#C73739 #81C737 #37C7C5 #7D37C7

square

#C73739 #81C737 #37C7C5 #7D37C7

split-complementary

#C73739 #37C77D #3781C7

monochromatic

#671C1E #972A2B #C73739 #D56668 #E29697

Accessibility & contrast

On white

5.21

#C73739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#C73739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C73739

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C73739	#FFFFFF	#000000	##FFFFFF
##C73739	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615938

Deuteranopia (green-blind)

#857834

Tritanopia (blue-blind)

#DB0039

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c73739;
/* rgb */ color: rgb(199, 55, 57);
/* oklch */ color: oklch(55.5% 0.181 24.6);

Tailwind

colors: {
  custom: {
    50: '#e0786f',
    500: '#c73739',
    950: '#000000',
  },
}

SCSS

$custom: #c73739;
$custom-light: #e0786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c73739",
  "rgb": {
    "r": 199,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 359.167,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55518,
    "c": 0.18091,
    "h": 24.6
  },
  "luminance": 0.1517
}

Semantic roles & 50–950 ramp

primary

#C73739

secondary

#8CCDCD

accent

#E0DE48

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C73739

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

Preview Lab → · Contrast checker → · Palette generator →