#B73841#B73841

#B73841 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.0% C 0.163 H 20.8°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#B73841
RGB	rgb(183, 56, 65)
HSL	hsl(356, 53%, 47%)
HSV	hsv(356, 69%, 72%)
CMYK	cmyk(0%, 69.4%, 64.5%, 28.2%)
CIE-LAB	lab(43.18, 51.43, 24.24)
CIE-LCH	lch(43.18, 56.85, 25.23°)
OKLab	oklab(53.01% 0.1521 0.0578)
OKLCH	oklch(53.01% 0.163 20.8)
XYZ	xyz(21.8990, 13.2804, 6.4102)
Luminance	0.1328 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73841 #38B7AE

analogous

#B73881 #B73841 #B76F38

triadic

#B73841 #41B738 #3841B7

tetradic

#B73841 #81B738 #38B7AE #6F38B7

square

#B73841 #81B738 #38B7AE #6F38B7

split-complementary

#B73841 #38B76F #3881B7

monochromatic

#591B20 #882A30 #B73841 #CE5E66 #DC8D93

Accessibility & contrast

On white

5.74

#B73841 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B73841 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73841

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73841	#FFFFFF	#000000	##FFFFFF
##B73841	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5540

Deuteranopia (green-blind)

#7A703D

Tritanopia (blue-blind)

#C9153C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73841;
/* rgb */ color: rgb(183, 56, 65);
/* oklch */ color: oklch(53.0% 0.163 20.8);

Tailwind

colors: {
  custom: {
    50: '#d47775',
    500: '#b73841',
    950: '#000000',
  },
}

SCSS

$custom: #b73841;
$custom-light: #d47775;
$custom-dark: #000000;

JSON

{
  "hex": "#b73841",
  "rgb": {
    "r": 183,
    "g": 56,
    "b": 65
  },
  "hsl": {
    "h": 355.748,
    "s": 53.138,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53012,
    "c": 0.16273,
    "h": 20.8
  },
  "luminance": 0.13277
}

Semantic roles & 50–950 ramp

primary

#B73841

secondary

#84C7C2

accent

#DDD24B

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B73841

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

Preview Lab → · Contrast checker → · Palette generator →