#B7373E#B7373E

#B7373E is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.9% C 0.164 H 21.9°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B7373E
RGB	rgb(183, 55, 62)
HSL	hsl(357, 54%, 47%)
HSV	hsv(357, 70%, 72%)
CMYK	cmyk(0%, 69.9%, 66.1%, 28.2%)
CIE-LAB	lab(42.99, 51.64, 25.82)
CIE-LCH	lch(42.99, 57.73, 26.56°)
OKLab	oklab(52.85% 0.1522 0.061)
OKLCH	oklch(52.85% 0.164 21.9)
XYZ	xyz(21.7664, 13.1506, 5.9487)
Luminance	0.1315 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7373E #37B7B0

analogous

#B7377E #B7373E #B77037

triadic

#B7373E #3EB737 #373EB7

tetradic

#B7373E #7EB737 #37B7B0 #7037B7

square

#B7373E #7EB737 #37B7B0 #7037B7

split-complementary

#B7373E #37B770 #377EB7

monochromatic

#591B1E #88292E #B7373E #CE5D63 #DC8C90

Accessibility & contrast

On white

5.79

#B7373E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B7373E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7373E

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7373E	#FFFFFF	#000000	##FFFFFF
##B7373E	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)

#5A543D

Deuteranopia (green-blind)

#7A703A

Tritanopia (blue-blind)

#C9113B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b7373e;
/* rgb */ color: rgb(183, 55, 62);
/* oklch */ color: oklch(52.9% 0.164 21.9);

Tailwind

colors: {
  custom: {
    50: '#d47673',
    500: '#b7373e',
    950: '#000000',
  },
}

SCSS

$custom: #b7373e;
$custom-light: #d47673;
$custom-dark: #000000;

JSON

{
  "hex": "#b7373e",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 62
  },
  "hsl": {
    "h": 356.719,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52851,
    "c": 0.16397,
    "h": 21.9
  },
  "luminance": 0.13147
}

Semantic roles & 50–950 ramp

primary

#B7373E

secondary

#83C7C3

accent

#DDD54B

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160908

muted

#847B7B

Preview Lab

Preview with #B7373E

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

Preview Lab → · Contrast checker → · Palette generator →