#B72C33#B72C33

#B72C33 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.6% C 0.175 H 23.5°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#B72C33
RGB	rgb(183, 44, 51)
HSL	hsl(357, 61%, 45%)
HSV	hsv(357, 76%, 72%)
CMYK	cmyk(0%, 76%, 72.1%, 28.2%)
CIE-LAB	lab(41.39, 55.03, 30.52)
CIE-LCH	lch(41.39, 62.93, 29.01°)
OKLab	oklab(51.61% 0.1606 0.0697)
OKLCH	oklch(51.61% 0.175 23.5)
XYZ	xyz(21.0291, 12.1109, 4.3617)
Luminance	0.1211 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72C33 #2CB7B0

analogous

#B72C79 #B72C33 #B76A2C

triadic

#B72C33 #33B72C #2C33B7

tetradic

#B72C33 #79B72C #2CB7B0 #6A2CB7

square

#B72C33 #79B72C #2CB7B0 #6A2CB7

split-complementary

#B72C33 #2CB76A #2C79B7

monochromatic

#541418 #862025 #B72C33 #D44C53 #E07E82

Accessibility & contrast

On white

6.14

#B72C33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B72C33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72C33

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72C33	#FFFFFF	#000000	##FFFFFF
##B72C33	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F32

Deuteranopia (green-blind)

#786C2E

Tritanopia (blue-blind)

#C90030

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72c33;
/* rgb */ color: rgb(183, 44, 51);
/* oklch */ color: oklch(51.6% 0.175 23.5);

Tailwind

colors: {
  custom: {
    50: '#d5716b',
    500: '#b72c33',
    950: '#000000',
  },
}

SCSS

$custom: #b72c33;
$custom-light: #d5716b;
$custom-dark: #000000;

JSON

{
  "hex": "#b72c33",
  "rgb": {
    "r": 183,
    "g": 44,
    "b": 51
  },
  "hsl": {
    "h": 356.978,
    "s": 61.233,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51607,
    "c": 0.1751,
    "h": 23.5
  },
  "luminance": 0.12108
}

Semantic roles & 50–950 ramp

primary

#B72C33

secondary

#76C8C4

accent

#E4DC43

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B72C33

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

Preview Lab → · Contrast checker → · Palette generator →