#B73E36#B73E36

#B73E36 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.5% C 0.158 H 27.5°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#B73E36
RGB	rgb(183, 62, 54)
HSL	hsl(4, 54%, 46%)
HSV	hsv(4, 70%, 72%)
CMYK	cmyk(0%, 66.1%, 70.5%, 28.2%)
CIE-LAB	lab(43.92, 48.35, 31.71)
CIE-LCH	lch(43.92, 57.82, 33.26°)
OKLab	oklab(53.51% 0.1401 0.0729)
OKLCH	oklch(53.51% 0.158 27.5)
XYZ	xyz(21.9192, 13.7820, 4.9953)
Luminance	0.1378 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73E36 #36AFB7

analogous

#B7366F #B73E36 #B77F36

triadic

#B73E36 #36B73E #3E36B7

tetradic

#B73E36 #6FB736 #36AFB7 #7F36B7

square

#B73E36 #6FB736 #36AFB7 #7F36B7

split-complementary

#B73E36 #36B77F #366FB7

monochromatic

#581E1A #882E28 #B73E36 #CF635B #DD908B

Accessibility & contrast

On white

5.59

#B73E36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#B73E36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73E36

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73E36	#FFFFFF	#000000	##FFFFFF
##B73E36	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5734

Deuteranopia (green-blind)

#7E7232

Tritanopia (blue-blind)

#C91E3D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73e36;
/* rgb */ color: rgb(183, 62, 54);
/* oklch */ color: oklch(53.5% 0.158 27.5);

Tailwind

colors: {
  custom: {
    50: '#d47a6d',
    500: '#b73e36',
    950: '#000000',
  },
}

SCSS

$custom: #b73e36;
$custom-light: #d47a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b73e36",
  "rgb": {
    "r": 183,
    "g": 62,
    "b": 54
  },
  "hsl": {
    "h": 3.721,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.53508,
    "c": 0.15796,
    "h": 27.5
  },
  "luminance": 0.13779
}

Semantic roles & 50–950 ramp

primary

#B73E36

secondary

#82C3C7

accent

#D5DE4A

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B73E36

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

Preview Lab → · Contrast checker → · Palette generator →