#B73F35#B73F35

#B73F35 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.6% C 0.157 H 28.2°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#B73F35
RGB	rgb(183, 63, 53)
HSL	hsl(5, 55%, 46%)
HSV	hsv(5, 71%, 72%)
CMYK	cmyk(0%, 65.6%, 71%, 28.2%)
CIE-LAB	lab(44.06, 47.87, 32.46)
CIE-LCH	lch(44.06, 57.84, 34.14°)
OKLab	oklab(53.61% 0.1384 0.0744)
OKLCH	oklch(53.61% 0.157 28.2)
XYZ	xyz(21.9509, 13.8825, 4.8912)
Luminance	0.1388 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73F35 #35ADB7

analogous

#B7356C #B73F35 #B78035

triadic

#B73F35 #35B73F #3F35B7

tetradic

#B73F35 #6CB735 #35ADB7 #8035B7

square

#B73F35 #6CB735 #35ADB7 #8035B7

split-complementary

#B73F35 #35B780 #356CB7

monochromatic

#581E1A #882F27 #B73F35 #CF635A #DD9089

Accessibility & contrast

On white

5.56

#B73F35 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#B73F35 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73F35

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73F35	#FFFFFF	#000000	##FFFFFF
##B73F35	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605833

Deuteranopia (green-blind)

#7E7231

Tritanopia (blue-blind)

#C9203E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73f35;
/* rgb */ color: rgb(183, 63, 53);
/* oklch */ color: oklch(53.6% 0.157 28.2);

Tailwind

colors: {
  custom: {
    50: '#d47a6d',
    500: '#b73f35',
    950: '#000000',
  },
}

SCSS

$custom: #b73f35;
$custom-light: #d47a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b73f35",
  "rgb": {
    "r": 183,
    "g": 63,
    "b": 53
  },
  "hsl": {
    "h": 4.615,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53613,
    "c": 0.15713,
    "h": 28.2
  },
  "luminance": 0.13879
}

Semantic roles & 50–950 ramp

primary

#B73F35

secondary

#81C2C7

accent

#D3DE49

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B73F35

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

Preview Lab → · Contrast checker → · Palette generator →