#B73B2C#B73B2C

#B73B2C is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.163 H 30.2°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#B73B2C
RGB	rgb(183, 59, 44)
HSL	hsl(6, 61%, 45%)
HSV	hsv(6, 76%, 72%)
CMYK	cmyk(0%, 67.8%, 76%, 28.2%)
CIE-LAB	lab(43.33, 49.15, 36.76)
CIE-LCH	lch(43.33, 61.38, 36.80°)
OKLab	oklab(53.03% 0.1406 0.0817)
OKLCH	oklch(53.03% 0.163 30.2)
XYZ	xyz(21.5494, 13.3802, 3.8303)
Luminance	0.1338 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73B2C #2CA8B7

analogous

#B72C63 #B73B2C #B7812C

triadic

#B73B2C #2CB73B #3B2CB7

tetradic

#B73B2C #63B72C #2CA8B7 #812CB7

square

#B73B2C #63B72C #2CA8B7 #812CB7

split-complementary

#B73B2C #2CB781 #2C63B7

monochromatic

#541B14 #862B20 #B73B2C #D45B4C #E0887E

Accessibility & contrast

On white

5.71

#B73B2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B73B2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73B2C

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73B2C	#FFFFFF	#000000	##FFFFFF
##B73B2C	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5529

Deuteranopia (green-blind)

#7D7027

Tritanopia (blue-blind)

#C91538

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73b2c;
/* rgb */ color: rgb(183, 59, 44);
/* oklch */ color: oklch(53.0% 0.163 30.2);

Tailwind

colors: {
  custom: {
    50: '#d57866',
    500: '#b73b2c',
    950: '#000000',
  },
}

SCSS

$custom: #b73b2c;
$custom-light: #d57866;
$custom-dark: #000000;

JSON

{
  "hex": "#b73b2c",
  "rgb": {
    "r": 183,
    "g": 59,
    "b": 44
  },
  "hsl": {
    "h": 6.475,
    "s": 61.233,
    "l": 44.51
  },
  "oklch": {
    "l": 0.53028,
    "c": 0.16263,
    "h": 30.2
  },
  "luminance": 0.13377
}

Semantic roles & 50–950 ramp

primary

#B73B2C

secondary

#76C0C8

accent

#D3E443

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73B2C

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

Preview Lab → · Contrast checker → · Palette generator →