#B73F39#B73F39

#B73F39 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.7% C 0.156 H 26.6°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#B73F39
RGB	rgb(183, 63, 57)
HSL	hsl(3, 53%, 47%)
HSV	hsv(3, 69%, 72%)
CMYK	cmyk(0%, 65.6%, 68.9%, 28.2%)
CIE-LAB	lab(44.12, 48.08, 30.19)
CIE-LCH	lch(44.12, 56.77, 32.13°)
OKLab	oklab(53.67% 0.1399 0.0701)
OKLCH	oklch(53.67% 0.156 26.6)
XYZ	xyz(22.0468, 13.9208, 5.3962)
Luminance	0.1392 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73F39 #39B1B7

analogous

#B73972 #B73F39 #B77E39

triadic

#B73F39 #39B73F #3F39B7

tetradic

#B73F39 #72B739 #39B1B7 #7E39B7

square

#B73F39 #72B739 #39B1B7 #7E39B7

split-complementary

#B73F39 #39B77E #3972B7

monochromatic

#5A1F1C #882F2A #B73F39 #CD6560 #DC928E

Accessibility & contrast

On white

5.55

#B73F39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#B73F39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73F39

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73F39	#FFFFFF	#000000	##FFFFFF
##B73F39	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605837

Deuteranopia (green-blind)

#7E7235

Tritanopia (blue-blind)

#C9213F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73f39;
/* rgb */ color: rgb(183, 63, 57);
/* oklch */ color: oklch(53.7% 0.156 26.6);

Tailwind

colors: {
  custom: {
    50: '#d47a6f',
    500: '#b73f39',
    950: '#000000',
  },
}

SCSS

$custom: #b73f39;
$custom-light: #d47a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b73f39",
  "rgb": {
    "r": 183,
    "g": 63,
    "b": 57
  },
  "hsl": {
    "h": 2.857,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53672,
    "c": 0.15646,
    "h": 26.6
  },
  "luminance": 0.13918
}

Semantic roles & 50–950 ramp

primary

#B73F39

secondary

#85C4C7

accent

#D5DC4C

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B73F39

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

Preview Lab → · Contrast checker → · Palette generator →