#B72E37#B72E37

#B72E37 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.8% C 0.173 H 22.4°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#B72E37
RGB	rgb(183, 46, 55)
HSL	hsl(356, 60%, 45%)
HSV	hsv(356, 75%, 72%)
CMYK	cmyk(0%, 74.9%, 69.9%, 28.2%)
CIE-LAB	lab(41.69, 54.55, 28.46)
CIE-LCH	lch(41.69, 61.53, 27.55°)
OKLab	oklab(51.85% 0.16 0.0659)
OKLCH	oklch(51.85% 0.173 22.4)
XYZ	xyz(21.1974, 12.3003, 4.8717)
Luminance	0.1230 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72E37 #2EB7AE

analogous

#B72E7C #B72E37 #B7692E

triadic

#B72E37 #37B72E #2E37B7

tetradic

#B72E37 #7CB72E #2EB7AE #692EB7

square

#B72E37 #7CB72E #2EB7AE #692EB7

split-complementary

#B72E37 #2EB769 #2E7CB7

monochromatic

#55151A #862228 #B72E37 #D34F58 #DF8086

Accessibility & contrast

On white

6.07

#B72E37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B72E37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72E37

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72E37	#FFFFFF	#000000	##FFFFFF
##B72E37	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565036

Deuteranopia (green-blind)

#786D33

Tritanopia (blue-blind)

#C90033

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b72e37;
/* rgb */ color: rgb(183, 46, 55);
/* oklch */ color: oklch(51.8% 0.173 22.4);

Tailwind

colors: {
  custom: {
    50: '#d5726e',
    500: '#b72e37',
    950: '#000000',
  },
}

SCSS

$custom: #b72e37;
$custom-light: #d5726e;
$custom-dark: #000000;

JSON

{
  "hex": "#b72e37",
  "rgb": {
    "r": 183,
    "g": 46,
    "b": 55
  },
  "hsl": {
    "h": 356.058,
    "s": 59.825,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51847,
    "c": 0.17303,
    "h": 22.4
  },
  "luminance": 0.12297
}

Semantic roles & 50–950 ramp

primary

#B72E37

secondary

#79C8C3

accent

#E3D945

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B72E37

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

Preview Lab → · Contrast checker → · Palette generator →