#B73D2B#B73D2B

#B73D2B is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.2% C 0.161 H 31.2°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B73D2B
RGB	rgb(183, 61, 43)
HSL	hsl(8, 62%, 44%)
HSV	hsv(8, 77%, 72%)
CMYK	cmyk(0%, 66.7%, 76.5%, 28.2%)
CIE-LAB	lab(43.63, 48.27, 37.64)
CIE-LCH	lch(43.63, 61.21, 37.94°)
OKLab	oklab(53.25% 0.1377 0.0834)
OKLCH	oklch(53.25% 0.161 31.2)
XYZ	xyz(21.6356, 13.5824, 3.7674)
Luminance	0.1358 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73D2B #2BA5B7

analogous

#B72B5F #B73D2B #B7832B

triadic

#B73D2B #2BB73D #3D2BB7

tetradic

#B73D2B #5FB72B #2BA5B7 #832BB7

square

#B73D2B #5FB72B #2BA5B7 #832BB7

split-complementary

#B73D2B #2BB783 #2B5FB7

monochromatic

#541C14 #852C1F #B73D2B #D55C4B #E0897C

Accessibility & contrast

On white

5.65

#B73D2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B73D2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73D2B

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73D2B	#FFFFFF	#000000	##FFFFFF
##B73D2B	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605628

Deuteranopia (green-blind)

#7E7126

Tritanopia (blue-blind)

#C9193A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73d2b;
/* rgb */ color: rgb(183, 61, 43);
/* oklch */ color: oklch(53.2% 0.161 31.2);

Tailwind

colors: {
  custom: {
    50: '#d57965',
    500: '#b73d2b',
    950: '#000000',
  },
}

SCSS

$custom: #b73d2b;
$custom-light: #d57965;
$custom-dark: #000000;

JSON

{
  "hex": "#b73d2b",
  "rgb": {
    "r": 183,
    "g": 61,
    "b": 43
  },
  "hsl": {
    "h": 7.714,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.53247,
    "c": 0.16094,
    "h": 31.2
  },
  "luminance": 0.13579
}

Semantic roles & 50–950 ramp

primary

#B73D2B

secondary

#75BEC9

accent

#D0E543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73D2B

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

Preview Lab → · Contrast checker → · Palette generator →