#B72A2B#B72A2B

#B72A2B is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.3% C 0.178 H 25.8°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#B72A2B
RGB	rgb(183, 42, 43)
HSL	hsl(360, 63%, 44%)
HSV	hsv(360, 77%, 72%)
CMYK	cmyk(0%, 77%, 76.5%, 28.2%)
CIE-LAB	lab(41.06, 55.34, 34.86)
CIE-LCH	lch(41.06, 65.41, 32.21°)
OKLab	oklab(51.33% 0.1599 0.0773)
OKLCH	oklch(51.33% 0.178 25.8)
XYZ	xyz(20.7949, 11.9009, 3.4872)
Luminance	0.1190 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72A2B #2AB7B6

analogous

#B72A72 #B72A2B #B76F2A

triadic

#B72A2B #2BB72A #2A2BB7

tetradic

#B72A2B #72B72A #2AB7B6 #6F2AB7

square

#B72A2B #72B72A #2AB7B6 #6F2AB7

split-complementary

#B72A2B #2AB76F #2A72B7

monochromatic

#531314 #851F1F #B72A2B #D5494A #E17B7B

Accessibility & contrast

On white

6.21

#B72A2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B72A2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72A2B

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72A2B	#FFFFFF	#000000	##FFFFFF
##B72A2B	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D29

Deuteranopia (green-blind)

#786C25

Tritanopia (blue-blind)

#CA002C

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b72a2b;
/* rgb */ color: rgb(183, 42, 43);
/* oklch */ color: oklch(51.3% 0.178 25.8);

Tailwind

colors: {
  custom: {
    50: '#d67065',
    500: '#b72a2b',
    950: '#000000',
  },
}

SCSS

$custom: #b72a2b;
$custom-light: #d67065;
$custom-dark: #000000;

JSON

{
  "hex": "#b72a2b",
  "rgb": {
    "r": 183,
    "g": 42,
    "b": 43
  },
  "hsl": {
    "h": 359.574,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51327,
    "c": 0.17759,
    "h": 25.8
  },
  "luminance": 0.11898
}

Semantic roles & 50–950 ramp

primary

#B72A2B

secondary

#74C9C8

accent

#E6E542

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B72A2B

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

Preview Lab → · Contrast checker → · Palette generator →