#B73C28#B73C28

#B73C28 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.162 H 31.8°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B73C28
RGB	rgb(183, 60, 40)
HSL	hsl(8, 64%, 44%)
HSV	hsv(8, 78%, 72%)
CMYK	cmyk(0%, 67.2%, 78.1%, 28.2%)
CIE-LAB	lab(43.44, 48.58, 39.07)
CIE-LCH	lch(43.44, 62.34, 38.81°)
OKLab	oklab(53.1% 0.138 0.0857)
OKLCH	oklch(53.1% 0.162 31.8)
XYZ	xyz(21.5297, 13.4554, 3.4706)
Luminance	0.1345 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73C28 #28A3B7

analogous

#B7285B #B73C28 #B78328

triadic

#B73C28 #28B73C #3C28B7

tetradic

#B73C28 #5BB728 #28A3B7 #8328B7

square

#B73C28 #5BB728 #28A3B7 #8328B7

split-complementary

#B73C28 #28B783 #285BB7

monochromatic

#531B12 #852C1D #B73C28 #D65A46 #E18778

Accessibility & contrast

On white

5.69

#B73C28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B73C28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73C28

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73C28	#FFFFFF	#000000	##FFFFFF
##B73C28	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)

#5F5525

Deuteranopia (green-blind)

#7E7123

Tritanopia (blue-blind)

#C91638

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73c28;
/* rgb */ color: rgb(183, 60, 40);
/* oklch */ color: oklch(53.1% 0.162 31.8);

Tailwind

colors: {
  custom: {
    50: '#d57863',
    500: '#b73c28',
    950: '#000000',
  },
}

SCSS

$custom: #b73c28;
$custom-light: #d57863;
$custom-dark: #000000;

JSON

{
  "hex": "#b73c28",
  "rgb": {
    "r": 183,
    "g": 60,
    "b": 40
  },
  "hsl": {
    "h": 8.392,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.53097,
    "c": 0.16244,
    "h": 31.8
  },
  "luminance": 0.13452
}

Semantic roles & 50–950 ramp

primary

#B73C28

secondary

#72BDC9

accent

#D0E741

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B73C28

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

Preview Lab → · Contrast checker → · Palette generator →