#B73742#B73742

#B73742 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.9% C 0.164 H 20.1°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B73742
RGB	rgb(183, 55, 66)
HSL	hsl(355, 54%, 47%)
HSV	hsv(355, 70%, 72%)
CMYK	cmyk(0%, 69.9%, 63.9%, 28.2%)
CIE-LAB	lab(43.06, 51.88, 23.46)
CIE-LCH	lch(43.06, 56.94, 24.34°)
OKLab	oklab(52.92% 0.1538 0.0562)
OKLCH	oklch(52.92% 0.164 20.1)
XYZ	xyz(21.8802, 13.1961, 6.5482)
Luminance	0.1319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73742 #37B7AC

analogous

#B73782 #B73742 #B76C37

triadic

#B73742 #42B737 #3742B7

tetradic

#B73742 #82B737 #37B7AC #6C37B7

square

#B73742 #82B737 #37B7AC #6C37B7

split-complementary

#B73742 #37B76C #3782B7

monochromatic

#591B20 #882931 #B73742 #CE5D67 #DC8C93

Accessibility & contrast

On white

5.77

#B73742 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B73742 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73742

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73742	#FFFFFF	#000000	##FFFFFF
##B73742	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5441

Deuteranopia (green-blind)

#7A703E

Tritanopia (blue-blind)

#C9133C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73742;
/* rgb */ color: rgb(183, 55, 66);
/* oklch */ color: oklch(52.9% 0.164 20.1);

Tailwind

colors: {
  custom: {
    50: '#d47676',
    500: '#b73742',
    950: '#000000',
  },
}

SCSS

$custom: #b73742;
$custom-light: #d47676;
$custom-dark: #000000;

JSON

{
  "hex": "#b73742",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 66
  },
  "hsl": {
    "h": 354.844,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52924,
    "c": 0.16369,
    "h": 20.1
  },
  "luminance": 0.13193
}

Semantic roles & 50–950 ramp

primary

#B73742

secondary

#83C7C1

accent

#DDD14B

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B73742

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

Preview Lab → · Contrast checker → · Palette generator →