#B73636#B73636

#B73636 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.6% C 0.166 H 24.9°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#B73636
RGB	rgb(183, 54, 54)
HSL	hsl(0, 54%, 46%)
HSV	hsv(0, 70%, 72%)
CMYK	cmyk(0%, 70.5%, 70.5%, 28.2%)
CIE-LAB	lab(42.73, 51.60, 30.30)
CIE-LCH	lch(42.73, 59.84, 30.42°)
OKLab	oklab(52.62% 0.1504 0.0698)
OKLCH	oklch(52.62% 0.166 24.9)
XYZ	xyz(21.5158, 12.9751, 4.8608)
Luminance	0.1297 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73636 #36B7B7

analogous

#B73677 #B73636 #B77736

triadic

#B73636 #36B736 #3636B7

tetradic

#B73636 #77B736 #36B7B7 #7736B7

square

#B73636 #77B736 #36B7B7 #7736B7

split-complementary

#B73636 #36B777 #3677B7

monochromatic

#581A1A #882828 #B73636 #CF5B5B #DD8B8B

Accessibility & contrast

On white

5.84

#B73636 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B73636 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73636

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73636	#FFFFFF	#000000	##FFFFFF
##B73636	1.00	5.84	3.59	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5335

Deuteranopia (green-blind)

#7B6F32

Tritanopia (blue-blind)

#C90938

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b73636;
/* rgb */ color: rgb(183, 54, 54);
/* oklch */ color: oklch(52.6% 0.166 24.9);

Tailwind

colors: {
  custom: {
    50: '#d4766d',
    500: '#b73636',
    950: '#000000',
  },
}

SCSS

$custom: #b73636;
$custom-light: #d4766d;
$custom-dark: #000000;

JSON

{
  "hex": "#b73636",
  "rgb": {
    "r": 183,
    "g": 54,
    "b": 54
  },
  "hsl": {
    "h": 0,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52615,
    "c": 0.16579,
    "h": 24.9
  },
  "luminance": 0.12972
}

Semantic roles & 50–950 ramp

primary

#B73636

secondary

#82C7C7

accent

#DEDE4A

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B73636

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

Preview Lab → · Contrast checker → · Palette generator →