#B72A2A#B72A2A

#B72A2A is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.3% C 0.178 H 26.1°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#B72A2A
RGB	rgb(183, 42, 42)
HSL	hsl(0, 63%, 44%)
HSV	hsv(0, 77%, 72%)
CMYK	cmyk(0%, 77%, 77%, 28.2%)
CIE-LAB	lab(41.05, 55.31, 35.43)
CIE-LCH	lch(41.05, 65.68, 32.64°)
OKLab	oklab(51.31% 0.1595 0.0783)
OKLCH	oklch(51.31% 0.178 26.1)
XYZ	xyz(20.7768, 11.8937, 3.3918)
Luminance	0.1189 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72A2A #2AB7B7

analogous

#B72A71 #B72A2A #B7712A

triadic

#B72A2A #2AB72A #2A2AB7

tetradic

#B72A2A #71B72A #2AB7B7 #712AB7

square

#B72A2A #71B72A #2AB7B7 #712AB7

split-complementary

#B72A2A #2AB771 #2A71B7

monochromatic

#531313 #851F1F #B72A2A #D54949 #E17B7B

Accessibility & contrast

On white

6.22

#B72A2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B72A2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72A2A

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72A2A	#FFFFFF	#000000	##FFFFFF
##B72A2A	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D28

Deuteranopia (green-blind)

#786C24

Tritanopia (blue-blind)

#CA002C

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b72a2a;
/* rgb */ color: rgb(183, 42, 42);
/* oklch */ color: oklch(51.3% 0.178 26.1);

Tailwind

colors: {
  custom: {
    50: '#d67064',
    500: '#b72a2a',
    950: '#000000',
  },
}

SCSS

$custom: #b72a2a;
$custom-light: #d67064;
$custom-dark: #000000;

JSON

{
  "hex": "#b72a2a",
  "rgb": {
    "r": 183,
    "g": 42,
    "b": 42
  },
  "hsl": {
    "h": 0,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51314,
    "c": 0.17771,
    "h": 26.1
  },
  "luminance": 0.1189
}

Semantic roles & 50–950 ramp

primary

#B72A2A

secondary

#74C9C9

accent

#E6E642

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B72A2A

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

Preview Lab → · Contrast checker → · Palette generator →