#B73F34#B73F34

#B73F34 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.6% C 0.157 H 28.6°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#B73F34
RGB	rgb(183, 63, 52)
HSL	hsl(5, 56%, 46%)
HSV	hsv(5, 72%, 72%)
CMYK	cmyk(0%, 65.6%, 71.6%, 28.2%)
CIE-LAB	lab(44.05, 47.82, 33.03)
CIE-LCH	lch(44.05, 58.12, 34.63°)
OKLab	oklab(53.6% 0.1381 0.0754)
OKLCH	oklch(53.6% 0.157 28.6)
XYZ	xyz(21.9281, 13.8734, 4.7713)
Luminance	0.1387 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73F34 #34ACB7

analogous

#B7346A #B73F34 #B78034

triadic

#B73F34 #34B73F #3F34B7

tetradic

#B73F34 #6AB734 #34ACB7 #8034B7

square

#B73F34 #6AB734 #34ACB7 #8034B7

split-complementary

#B73F34 #34B780 #346AB7

monochromatic

#581E19 #872F26 #B73F34 #D06359 #DD8F88

Accessibility & contrast

On white

5.56

#B73F34 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B73F34 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73F34

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73F34	#FFFFFF	#000000	##FFFFFF
##B73F34	1.00	5.56	3.77	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605832

Deuteranopia (green-blind)

#7E7230

Tritanopia (blue-blind)

#C9203D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73f34;
/* rgb */ color: rgb(183, 63, 52);
/* oklch */ color: oklch(53.6% 0.157 28.6);

Tailwind

colors: {
  custom: {
    50: '#d47a6c',
    500: '#b73f34',
    950: '#000000',
  },
}

SCSS

$custom: #b73f34;
$custom-light: #d47a6c;
$custom-dark: #000000;

JSON

{
  "hex": "#b73f34",
  "rgb": {
    "r": 183,
    "g": 63,
    "b": 52
  },
  "hsl": {
    "h": 5.038,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.53599,
    "c": 0.15732,
    "h": 28.6
  },
  "luminance": 0.1387
}

Semantic roles & 50–950 ramp

primary

#B73F34

secondary

#80C1C7

accent

#D2DF49

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B73F34

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

Preview Lab → · Contrast checker → · Palette generator →