#B73340#B73340

#B73340 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.5% C 0.168 H 19.9°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B73340
RGB	rgb(183, 51, 64)
HSL	hsl(354, 56%, 46%)
HSV	hsv(354, 72%, 72%)
CMYK	cmyk(0%, 72.1%, 65%, 28.2%)
CIE-LAB	lab(42.47, 53.27, 23.94)
CIE-LCH	lch(42.47, 58.41, 24.20°)
OKLab	oklab(52.48% 0.1578 0.0571)
OKLCH	oklch(52.48% 0.168 19.9)
XYZ	xyz(21.6400, 12.8083, 6.1823)
Luminance	0.1280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73340 #33B7AA

analogous

#B73382 #B73340 #B76833

triadic

#B73340 #40B733 #3340B7

tetradic

#B73340 #82B733 #33B7AA #6833B7

square

#B73340 #82B733 #33B7AA #6833B7

split-complementary

#B73340 #33B768 #3382B7

monochromatic

#57181F #87262F #B73340 #D05763 #DE878F

Accessibility & contrast

On white

5.90

#B73340 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B73340 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73340

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73340	#FFFFFF	#000000	##FFFFFF
##B73340	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585240

Deuteranopia (green-blind)

#796E3C

Tritanopia (blue-blind)

#C90439

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b73340;
/* rgb */ color: rgb(183, 51, 64);
/* oklch */ color: oklch(52.5% 0.168 19.9);

Tailwind

colors: {
  custom: {
    50: '#d47474',
    500: '#b73340',
    950: '#000000',
  },
}

SCSS

$custom: #b73340;
$custom-light: #d47474;
$custom-dark: #000000;

JSON

{
  "hex": "#b73340",
  "rgb": {
    "r": 183,
    "g": 51,
    "b": 64
  },
  "hsl": {
    "h": 354.091,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52477,
    "c": 0.1678,
    "h": 19.9
  },
  "luminance": 0.12805
}

Semantic roles & 50–950 ramp

primary

#B73340

secondary

#7FC7C0

accent

#E0D148

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73340

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

Preview Lab → · Contrast checker → · Palette generator →