#B7372B#B7372B

#B7372B is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.6% C 0.167 H 29.2°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#B7372B
RGB	rgb(183, 55, 43)
HSL	hsl(5, 62%, 44%)
HSV	hsv(5, 77%, 72%)
CMYK	cmyk(0%, 69.9%, 76.5%, 28.2%)
CIE-LAB	lab(42.73, 50.72, 36.67)
CIE-LCH	lch(42.73, 62.59, 35.87°)
OKLab	oklab(52.57% 0.1453 0.0813)
OKLCH	oklch(52.57% 0.167 29.2)
XYZ	xyz(21.3331, 12.9773, 3.6666)
Luminance	0.1297 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7372B #2BABB7

analogous

#B72B65 #B7372B #B77D2B

triadic

#B7372B #2BB737 #372BB7

tetradic

#B7372B #65B72B #2BABB7 #7D2BB7

square

#B7372B #65B72B #2BABB7 #7D2BB7

split-complementary

#B7372B #2BB77D #2B65B7

monochromatic

#541914 #85281F #B7372B #D5564B #E0857C

Accessibility & contrast

On white

5.84

#B7372B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B7372B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7372B

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7372B	#FFFFFF	#000000	##FFFFFF
##B7372B	1.00	5.84	3.59	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5329

Deuteranopia (green-blind)

#7C6F26

Tritanopia (blue-blind)

#C90735

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b7372b;
/* rgb */ color: rgb(183, 55, 43);
/* oklch */ color: oklch(52.6% 0.167 29.2);

Tailwind

colors: {
  custom: {
    50: '#d57665',
    500: '#b7372b',
    950: '#000000',
  },
}

SCSS

$custom: #b7372b;
$custom-light: #d57665;
$custom-dark: #000000;

JSON

{
  "hex": "#b7372b",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 43
  },
  "hsl": {
    "h": 5.143,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.52573,
    "c": 0.1665,
    "h": 29.2
  },
  "luminance": 0.12974
}

Semantic roles & 50–950 ramp

primary

#B7372B

secondary

#75C1C9

accent

#D7E543

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B7372B

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

Preview Lab → · Contrast checker → · Palette generator →