#B73C2B#B73C2B

#B73C2B is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.162 H 30.9°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#B73C2B
RGB	rgb(183, 60, 43)
HSL	hsl(7, 62%, 44%)
HSV	hsv(7, 77%, 72%)
CMYK	cmyk(0%, 67.2%, 76.5%, 28.2%)
CIE-LAB	lab(43.47, 48.69, 37.47)
CIE-LCH	lch(43.47, 61.44, 37.58°)
OKLab	oklab(53.13% 0.139 0.083)
OKLCH	oklch(53.13% 0.162 30.9)
XYZ	xyz(21.5828, 13.4766, 3.7498)
Luminance	0.1347 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73C2B #2BA6B7

analogous

#B72B60 #B73C2B #B7822B

triadic

#B73C2B #2BB73C #3C2BB7

tetradic

#B73C2B #60B72B #2BA6B7 #822BB7

square

#B73C2B #60B72B #2BA6B7 #822BB7

split-complementary

#B73C2B #2BB782 #2B60B7

monochromatic

#541C14 #852C1F #B73C2B #D55B4B #E0887C

Accessibility & contrast

On white

5.68

#B73C2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B73C2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73C2B

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73C2B	#FFFFFF	#000000	##FFFFFF
##B73C2B	1.00	5.68	3.69	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5628

Deuteranopia (green-blind)

#7E7126

Tritanopia (blue-blind)

#C91739

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73c2b;
/* rgb */ color: rgb(183, 60, 43);
/* oklch */ color: oklch(53.1% 0.162 30.9);

Tailwind

colors: {
  custom: {
    50: '#d57865',
    500: '#b73c2b',
    950: '#000000',
  },
}

SCSS

$custom: #b73c2b;
$custom-light: #d57865;
$custom-dark: #000000;

JSON

{
  "hex": "#b73c2b",
  "rgb": {
    "r": 183,
    "g": 60,
    "b": 43
  },
  "hsl": {
    "h": 7.286,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.53131,
    "c": 0.16187,
    "h": 30.9
  },
  "luminance": 0.13473
}

Semantic roles & 50–950 ramp

primary

#B73C2B

secondary

#75BEC9

accent

#D1E543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73C2B

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

Preview Lab → · Contrast checker → · Palette generator →