#B73D2D#B73D2D

#B73D2D is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.3% C 0.161 H 30.5°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B73D2D
RGB	rgb(183, 61, 45)
HSL	hsl(7, 61%, 45%)
HSV	hsv(7, 75%, 72%)
CMYK	cmyk(0%, 66.7%, 75.4%, 28.2%)
CIE-LAB	lab(43.65, 48.36, 36.55)
CIE-LCH	lch(43.65, 60.62, 37.08°)
OKLab	oklab(53.27% 0.1383 0.0815)
OKLCH	oklch(53.27% 0.161 30.5)
XYZ	xyz(21.6732, 13.5974, 3.9654)
Luminance	0.1359 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73D2D #2DA7B7

analogous

#B72D62 #B73D2D #B7822D

triadic

#B73D2D #2DB73D #3D2DB7

tetradic

#B73D2D #62B72D #2DA7B7 #822DB7

square

#B73D2D #62B72D #2DA7B7 #822DB7

split-complementary

#B73D2D #2DB782 #2D62B7

monochromatic

#551C15 #862D21 #B73D2D #D35D4E #DF8A7F

Accessibility & contrast

On white

5.65

#B73D2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B73D2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73D2D

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73D2D	#FFFFFF	#000000	##FFFFFF
##B73D2D	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60562A

Deuteranopia (green-blind)

#7E7129

Tritanopia (blue-blind)

#C91A3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73d2d;
/* rgb */ color: rgb(183, 61, 45);
/* oklch */ color: oklch(53.3% 0.161 30.5);

Tailwind

colors: {
  custom: {
    50: '#d57967',
    500: '#b73d2d',
    950: '#000000',
  },
}

SCSS

$custom: #b73d2d;
$custom-light: #d57967;
$custom-dark: #000000;

JSON

{
  "hex": "#b73d2d",
  "rgb": {
    "r": 183,
    "g": 61,
    "b": 45
  },
  "hsl": {
    "h": 6.957,
    "s": 60.526,
    "l": 44.706
  },
  "oklch": {
    "l": 0.53271,
    "c": 0.16056,
    "h": 30.5
  },
  "luminance": 0.13594
}

Semantic roles & 50–950 ramp

primary

#B73D2D

secondary

#78BFC8

accent

#D1E444

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73D2D

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

Preview Lab → · Contrast checker → · Palette generator →