#B72F33#B72F33

#B72F33 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.9% C 0.173 H 24.2°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#B72F33
RGB	rgb(183, 47, 51)
HSL	hsl(358, 59%, 45%)
HSV	hsv(358, 74%, 72%)
CMYK	cmyk(0%, 74.3%, 72.1%, 28.2%)
CIE-LAB	lab(41.76, 54.02, 30.94)
CIE-LCH	lch(41.76, 62.25, 29.81°)
OKLab	oklab(51.88% 0.1574 0.0707)
OKLCH	oklch(51.88% 0.173 24.2)
XYZ	xyz(21.1449, 12.3426, 4.4003)
Luminance	0.1234 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72F33 #2FB7B3

analogous

#B72F77 #B72F33 #B76F2F

triadic

#B72F33 #33B72F #2F33B7

tetradic

#B72F33 #77B72F #2FB7B3 #6F2FB7

square

#B72F33 #77B72F #2FB7B3 #6F2FB7

split-complementary

#B72F33 #2FB76F #2F77B7

monochromatic

#561618 #862225 #B72F33 #D25155 #DF8284

Accessibility & contrast

On white

6.06

#B72F33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B72F33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72F33

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72F33	#FFFFFF	#000000	##FFFFFF
##B72F33	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575032

Deuteranopia (green-blind)

#796D2E

Tritanopia (blue-blind)

#C90032

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72f33;
/* rgb */ color: rgb(183, 47, 51);
/* oklch */ color: oklch(51.9% 0.173 24.2);

Tailwind

colors: {
  custom: {
    50: '#d5726b',
    500: '#b72f33',
    950: '#000000',
  },
}

SCSS

$custom: #b72f33;
$custom-light: #d5726b;
$custom-dark: #000000;

JSON

{
  "hex": "#b72f33",
  "rgb": {
    "r": 183,
    "g": 47,
    "b": 51
  },
  "hsl": {
    "h": 358.235,
    "s": 59.13,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51878,
    "c": 0.17254,
    "h": 24.2
  },
  "luminance": 0.12339
}

Semantic roles & 50–950 ramp

primary

#B72F33

secondary

#7AC8C6

accent

#E2DE45

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B72F33

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

Preview Lab → · Contrast checker → · Palette generator →