#B73C2A#B73C2A

#B73C2A is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.162 H 31.2°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B73C2A
RGB	rgb(183, 60, 42)
HSL	hsl(8, 63%, 44%)
HSV	hsv(8, 77%, 72%)
CMYK	cmyk(0%, 67.2%, 77%, 28.2%)
CIE-LAB	lab(43.46, 48.65, 38.01)
CIE-LCH	lch(43.46, 61.74, 38.00°)
OKLab	oklab(53.12% 0.1387 0.0839)
OKLCH	oklch(53.12% 0.162 31.2)
XYZ	xyz(21.5646, 13.4693, 3.6544)
Luminance	0.1347 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73C2A #2AA5B7

analogous

#B72A5E #B73C2A #B7832A

triadic

#B73C2A #2AB73C #3C2AB7

tetradic

#B73C2A #5EB72A #2AA5B7 #832AB7

square

#B73C2A #5EB72A #2AA5B7 #832AB7

split-complementary

#B73C2A #2AB783 #2A5EB7

monochromatic

#531B13 #852C1F #B73C2A #D55B49 #E1887B

Accessibility & contrast

On white

5.69

#B73C2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B73C2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73C2A

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73C2A	#FFFFFF	#000000	##FFFFFF
##B73C2A	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5627

Deuteranopia (green-blind)

#7E7125

Tritanopia (blue-blind)

#C91739

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73c2a;
/* rgb */ color: rgb(183, 60, 42);
/* oklch */ color: oklch(53.1% 0.162 31.2);

Tailwind

colors: {
  custom: {
    50: '#d57865',
    500: '#b73c2a',
    950: '#000000',
  },
}

SCSS

$custom: #b73c2a;
$custom-light: #d57865;
$custom-dark: #000000;

JSON

{
  "hex": "#b73c2a",
  "rgb": {
    "r": 183,
    "g": 60,
    "b": 42
  },
  "hsl": {
    "h": 7.66,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.53119,
    "c": 0.16206,
    "h": 31.2
  },
  "luminance": 0.13466
}

Semantic roles & 50–950 ramp

primary

#B73C2A

secondary

#74BEC9

accent

#D1E642

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B73C2A

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

Preview Lab → · Contrast checker → · Palette generator →