#B72B33#B72B33

#B72B33 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.5% C 0.176 H 23.2°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#B72B33
RGB	rgb(183, 43, 51)
HSL	hsl(357, 62%, 44%)
HSV	hsv(357, 77%, 72%)
CMYK	cmyk(0%, 76.5%, 72.1%, 28.2%)
CIE-LAB	lab(41.28, 55.36, 30.38)
CIE-LCH	lch(41.28, 63.15, 28.76°)
OKLab	oklab(51.52% 0.1617 0.0694)
OKLCH	oklch(51.52% 0.176 23.2)
XYZ	xyz(20.9923, 12.0373, 4.3494)
Luminance	0.1203 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72B33 #2BB7AF

analogous

#B72B79 #B72B33 #B7692B

triadic

#B72B33 #33B72B #2B33B7

tetradic

#B72B33 #79B72B #2BB7AF #692BB7

square

#B72B33 #79B72B #2BB7AF #692BB7

split-complementary

#B72B33 #2BB769 #2B79B7

monochromatic

#541417 #851F25 #B72B33 #D54B52 #E07C82

Accessibility & contrast

On white

6.16

#B72B33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B72B33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72B33

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72B33	#FFFFFF	#000000	##FFFFFF
##B72B33	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554E32

Deuteranopia (green-blind)

#786C2E

Tritanopia (blue-blind)

#C90030

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b72b33;
/* rgb */ color: rgb(183, 43, 51);
/* oklch */ color: oklch(51.5% 0.176 23.2);

Tailwind

colors: {
  custom: {
    50: '#d5716b',
    500: '#b72b33',
    950: '#000000',
  },
}

SCSS

$custom: #b72b33;
$custom-light: #d5716b;
$custom-dark: #000000;

JSON

{
  "hex": "#b72b33",
  "rgb": {
    "r": 183,
    "g": 43,
    "b": 51
  },
  "hsl": {
    "h": 356.571,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51521,
    "c": 0.17593,
    "h": 23.2
  },
  "luminance": 0.12034
}

Semantic roles & 50–950 ramp

primary

#B72B33

secondary

#75C9C4

accent

#E5DC43

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B72B33

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

Preview Lab → · Contrast checker → · Palette generator →