#B73C33#B73C33

#B73C33 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.160 H 28.0°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B73C33
RGB	rgb(183, 60, 51)
HSL	hsl(4, 56%, 46%)
HSV	hsv(4, 72%, 72%)
CMYK	cmyk(0%, 67.2%, 72.1%, 28.2%)
CIE-LAB	lab(43.57, 49.04, 33.05)
CIE-LCH	lch(43.57, 59.14, 33.97°)
OKLab	oklab(53.23% 0.1417 0.0752)
OKLCH	oklch(53.23% 0.16 28)
XYZ	xyz(21.7442, 13.5412, 4.6001)
Luminance	0.1354 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73C33 #33AEB7

analogous

#B7336C #B73C33 #B77E33

triadic

#B73C33 #33B73C #3C33B7

tetradic

#B73C33 #6CB733 #33AEB7 #7E33B7

square

#B73C33 #6CB733 #33AEB7 #7E33B7

split-complementary

#B73C33 #33B77E #336CB7

monochromatic

#571D18 #872C26 #B73C33 #D05F57 #DE8D87

Accessibility & contrast

On white

5.66

#B73C33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B73C33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73C33

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73C33	#FFFFFF	#000000	##FFFFFF
##B73C33	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5631

Deuteranopia (green-blind)

#7D712F

Tritanopia (blue-blind)

#C9193B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73c33;
/* rgb */ color: rgb(183, 60, 51);
/* oklch */ color: oklch(53.2% 0.160 28.0);

Tailwind

colors: {
  custom: {
    50: '#d4796b',
    500: '#b73c33',
    950: '#000000',
  },
}

SCSS

$custom: #b73c33;
$custom-light: #d4796b;
$custom-dark: #000000;

JSON

{
  "hex": "#b73c33",
  "rgb": {
    "r": 183,
    "g": 60,
    "b": 51
  },
  "hsl": {
    "h": 4.091,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.53232,
    "c": 0.16044,
    "h": 28
  },
  "luminance": 0.13538
}

Semantic roles & 50–950 ramp

primary

#B73C33

secondary

#7FC2C7

accent

#D5E048

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73C33

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

Preview Lab → · Contrast checker → · Palette generator →