#B73D2A#B73D2A

#B73D2A is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.2% C 0.161 H 31.5°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B73D2A
RGB	rgb(183, 61, 42)
HSL	hsl(8, 63%, 44%)
HSV	hsv(8, 77%, 72%)
CMYK	cmyk(0%, 66.7%, 77%, 28.2%)
CIE-LAB	lab(43.62, 48.23, 38.17)
CIE-LCH	lch(43.62, 61.51, 38.36°)
OKLab	oklab(53.24% 0.1373 0.0843)
OKLCH	oklch(53.24% 0.161 31.5)
XYZ	xyz(21.6175, 13.5751, 3.6720)
Luminance	0.1357 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73D2A #2AA4B7

analogous

#B72A5E #B73D2A #B7842A

triadic

#B73D2A #2AB73D #3D2AB7

tetradic

#B73D2A #5EB72A #2AA4B7 #842AB7

square

#B73D2A #5EB72A #2AA4B7 #842AB7

split-complementary

#B73D2A #2AB784 #2A5EB7

monochromatic

#531C13 #852C1F #B73D2A #D55C49 #E1887B

Accessibility & contrast

On white

5.65

#B73D2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B73D2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73D2A

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73D2A	#FFFFFF	#000000	##FFFFFF
##B73D2A	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605627

Deuteranopia (green-blind)

#7E7125

Tritanopia (blue-blind)

#C91939

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73d2a;
/* rgb */ color: rgb(183, 61, 42);
/* oklch */ color: oklch(53.2% 0.161 31.5);

Tailwind

colors: {
  custom: {
    50: '#d57965',
    500: '#b73d2a',
    950: '#000000',
  },
}

SCSS

$custom: #b73d2a;
$custom-light: #d57965;
$custom-dark: #000000;

JSON

{
  "hex": "#b73d2a",
  "rgb": {
    "r": 183,
    "g": 61,
    "b": 42
  },
  "hsl": {
    "h": 8.085,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.53236,
    "c": 0.16113,
    "h": 31.5
  },
  "luminance": 0.13572
}

Semantic roles & 50–950 ramp

primary

#B73D2A

secondary

#74BDC9

accent

#D0E642

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B73D2A

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

Preview Lab → · Contrast checker → · Palette generator →