#B7373D#B7373D

#B7373D is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.8% C 0.164 H 22.3°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B7373D
RGB	rgb(183, 55, 61)
HSL	hsl(357, 54%, 47%)
HSV	hsv(357, 70%, 72%)
CMYK	cmyk(0%, 69.9%, 66.7%, 28.2%)
CIE-LAB	lab(42.97, 51.58, 26.40)
CIE-LCH	lch(42.97, 57.95, 27.10°)
OKLab	oklab(52.83% 0.1518 0.0622)
OKLCH	oklch(52.83% 0.164 22.3)
XYZ	xyz(21.7392, 13.1397, 5.8055)
Luminance	0.1314 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7373D #37B7B1

analogous

#B7377D #B7373D #B77137

triadic

#B7373D #3DB737 #373DB7

tetradic

#B7373D #7DB737 #37B7B1 #7137B7

square

#B7373D #7DB737 #37B7B1 #7137B7

split-complementary

#B7373D #37B771 #377DB7

monochromatic

#591B1E #88292D #B7373D #CE5D62 #DC8C90

Accessibility & contrast

On white

5.79

#B7373D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B7373D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7373D

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7373D	#FFFFFF	#000000	##FFFFFF
##B7373D	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A543C

Deuteranopia (green-blind)

#7A7039

Tritanopia (blue-blind)

#C9103A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b7373d;
/* rgb */ color: rgb(183, 55, 61);
/* oklch */ color: oklch(52.8% 0.164 22.3);

Tailwind

colors: {
  custom: {
    50: '#d47672',
    500: '#b7373d',
    950: '#000000',
  },
}

SCSS

$custom: #b7373d;
$custom-light: #d47672;
$custom-dark: #000000;

JSON

{
  "hex": "#b7373d",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 61
  },
  "hsl": {
    "h": 357.188,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52834,
    "c": 0.16406,
    "h": 22.3
  },
  "luminance": 0.13137
}

Semantic roles & 50–950 ramp

primary

#B7373D

secondary

#83C7C4

accent

#DDD64B

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160908

muted

#847B7B

Preview Lab

Preview with #B7373D

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

Preview Lab → · Contrast checker → · Palette generator →