#B7372D#B7372D

#B7372D is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.6% C 0.166 H 28.5°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#B7372D
RGB	rgb(183, 55, 45)
HSL	hsl(4, 61%, 45%)
HSV	hsv(4, 75%, 72%)
CMYK	cmyk(0%, 69.9%, 75.4%, 28.2%)
CIE-LAB	lab(42.75, 50.80, 35.57)
CIE-LCH	lch(42.75, 62.01, 35.00°)
OKLab	oklab(52.6% 0.146 0.0794)
OKLCH	oklch(52.6% 0.166 28.5)
XYZ	xyz(21.3707, 12.9923, 3.8646)
Luminance	0.1299 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7372D #2DADB7

analogous

#B72D68 #B7372D #B77C2D

triadic

#B7372D #2DB737 #372DB7

tetradic

#B7372D #68B72D #2DADB7 #7C2DB7

square

#B7372D #68B72D #2DADB7 #7C2DB7

split-complementary

#B7372D #2DB77C #2D68B7

monochromatic

#551915 #862821 #B7372D #D3574E #DF867F

Accessibility & contrast

On white

5.84

#B7372D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B7372D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7372D

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7372D	#FFFFFF	#000000	##FFFFFF
##B7372D	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C532B

Deuteranopia (green-blind)

#7C6F28

Tritanopia (blue-blind)

#C90836

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b7372d;
/* rgb */ color: rgb(183, 55, 45);
/* oklch */ color: oklch(52.6% 0.166 28.5);

Tailwind

colors: {
  custom: {
    50: '#d57667',
    500: '#b7372d',
    950: '#000000',
  },
}

SCSS

$custom: #b7372d;
$custom-light: #d57667;
$custom-dark: #000000;

JSON

{
  "hex": "#b7372d",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 45
  },
  "hsl": {
    "h": 4.348,
    "s": 60.526,
    "l": 44.706
  },
  "oklch": {
    "l": 0.52597,
    "c": 0.16617,
    "h": 28.5
  },
  "luminance": 0.12989
}

Semantic roles & 50–950 ramp

primary

#B7372D

secondary

#78C2C8

accent

#D8E444

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B7372D

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

Preview Lab → · Contrast checker → · Palette generator →