#B72F31#B72F31

#B72F31 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.8% C 0.173 H 24.9°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#B72F31
RGB	rgb(183, 47, 49)
HSL	hsl(359, 59%, 45%)
HSV	hsv(359, 74%, 72%)
CMYK	cmyk(0%, 74.3%, 73.2%, 28.2%)
CIE-LAB	lab(41.73, 53.93, 32.10)
CIE-LCH	lch(41.73, 62.76, 30.76°)
OKLab	oklab(51.85% 0.1567 0.0728)
OKLCH	oklch(51.85% 0.173 24.9)
XYZ	xyz(21.1017, 12.3253, 4.1730)
Luminance	0.1232 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72F31 #2FB7B5

analogous

#B72F75 #B72F31 #B7712F

triadic

#B72F31 #31B72F #2F31B7

tetradic

#B72F31 #75B72F #2FB7B5 #712FB7

square

#B72F31 #75B72F #2FB7B5 #712FB7

split-complementary

#B72F31 #2FB771 #2F75B7

monochromatic

#561617 #862224 #B72F31 #D25153 #DF8283

Accessibility & contrast

On white

6.06

#B72F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B72F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72F31

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72F31	#FFFFFF	#000000	##FFFFFF
##B72F31	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575030

Deuteranopia (green-blind)

#796D2C

Tritanopia (blue-blind)

#C90031

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72f31;
/* rgb */ color: rgb(183, 47, 49);
/* oklch */ color: oklch(51.8% 0.173 24.9);

Tailwind

colors: {
  custom: {
    50: '#d57269',
    500: '#b72f31',
    950: '#000000',
  },
}

SCSS

$custom: #b72f31;
$custom-light: #d57269;
$custom-dark: #000000;

JSON

{
  "hex": "#b72f31",
  "rgb": {
    "r": 183,
    "g": 47,
    "b": 49
  },
  "hsl": {
    "h": 359.118,
    "s": 59.13,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51849,
    "c": 0.17276,
    "h": 24.9
  },
  "luminance": 0.12322
}

Semantic roles & 50–950 ramp

primary

#B72F31

secondary

#7AC8C7

accent

#E2E045

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B72F31

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

Preview Lab → · Contrast checker → · Palette generator →