#B73C3D#B73C3D

#B73C3D is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.159 H 23.8°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#B73C3D
RGB	rgb(183, 60, 61)
HSL	hsl(360, 51%, 48%)
HSV	hsv(360, 67%, 72%)
CMYK	cmyk(0%, 67.2%, 66.7%, 28.2%)
CIE-LAB	lab(43.71, 49.57, 27.32)
CIE-LCH	lch(43.71, 56.60, 28.86°)
OKLab	oklab(53.39% 0.1454 0.0643)
OKLCH	oklch(53.39% 0.159 23.8)
XYZ	xyz(21.9889, 13.6390, 5.8887)
Luminance	0.1364 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73C3D #3CB7B6

analogous

#B73C7B #B73C3D #B7783C

triadic

#B73C3D #3DB73C #3C3DB7

tetradic

#B73C3D #7BB73C #3CB7B6 #783CB7

square

#B73C3D #7BB73C #3CB7B6 #783CB7

split-complementary

#B73C3D #3CB778 #3C7BB7

monochromatic

#5B1E1E #892D2E #B73C3D #CC6465 #DB9293

Accessibility & contrast

On white

5.63

#B73C3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B73C3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73C3D

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73C3D	#FFFFFF	#000000	##FFFFFF
##B73C3D	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D573C

Deuteranopia (green-blind)

#7C7139

Tritanopia (blue-blind)

#C91C3E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73c3d;
/* rgb */ color: rgb(183, 60, 61);
/* oklch */ color: oklch(53.4% 0.159 23.8);

Tailwind

colors: {
  custom: {
    50: '#d47972',
    500: '#b73c3d',
    950: '#000000',
  },
}

SCSS

$custom: #b73c3d;
$custom-light: #d47972;
$custom-dark: #000000;

JSON

{
  "hex": "#b73c3d",
  "rgb": {
    "r": 183,
    "g": 60,
    "b": 61
  },
  "hsl": {
    "h": 359.512,
    "s": 50.617,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53385,
    "c": 0.15899,
    "h": 23.8
  },
  "luminance": 0.13636
}

Semantic roles & 50–950 ramp

primary

#B73C3D

secondary

#88C6C6

accent

#DAD94E

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73C3D

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

Preview Lab → · Contrast checker → · Palette generator →