#B7372A#B7372A

#B7372A is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.6% C 0.167 H 29.6°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#B7372A
RGB	rgb(183, 55, 42)
HSL	hsl(6, 63%, 44%)
HSV	hsv(6, 77%, 72%)
CMYK	cmyk(0%, 69.9%, 77%, 28.2%)
CIE-LAB	lab(42.72, 50.68, 37.22)
CIE-LCH	lch(42.72, 62.88, 36.29°)
OKLab	oklab(52.56% 0.145 0.0822)
OKLCH	oklch(52.56% 0.167 29.6)
XYZ	xyz(21.3150, 12.9700, 3.5712)
Luminance	0.1297 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7372A #2AAAB7

analogous

#B72A64 #B7372A #B77E2A

triadic

#B7372A #2AB737 #372AB7

tetradic

#B7372A #64B72A #2AAAB7 #7E2AB7

square

#B7372A #64B72A #2AAAB7 #7E2AB7

split-complementary

#B7372A #2AB77E #2A64B7

monochromatic

#531913 #85281F #B7372A #D55649 #E1847B

Accessibility & contrast

On white

5.84

#B7372A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B7372A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7372A

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7372A	#FFFFFF	#000000	##FFFFFF
##B7372A	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)

#5C5327

Deuteranopia (green-blind)

#7C6F25

Tritanopia (blue-blind)

#CA0635

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b7372a;
/* rgb */ color: rgb(183, 55, 42);
/* oklch */ color: oklch(52.6% 0.167 29.6);

Tailwind

colors: {
  custom: {
    50: '#d57664',
    500: '#b7372a',
    950: '#000000',
  },
}

SCSS

$custom: #b7372a;
$custom-light: #d57664;
$custom-dark: #000000;

JSON

{
  "hex": "#b7372a",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 42
  },
  "hsl": {
    "h": 5.532,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.52562,
    "c": 0.16666,
    "h": 29.6
  },
  "luminance": 0.12967
}

Semantic roles & 50–950 ramp

primary

#B7372A

secondary

#74C1C9

accent

#D7E642

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B7372A

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

Preview Lab → · Contrast checker → · Palette generator →