#B73B3E#B73B3E

#B73B3E is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.3% C 0.160 H 23.1°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B73B3E
RGB	rgb(183, 59, 62)
HSL	hsl(359, 51%, 47%)
HSV	hsv(359, 68%, 72%)
CMYK	cmyk(0%, 67.8%, 66.1%, 28.2%)
CIE-LAB	lab(43.57, 50.04, 26.55)
CIE-LCH	lch(43.57, 56.65, 27.95°)
OKLab	oklab(53.29% 0.1471 0.0627)
OKLCH	oklch(53.29% 0.16 23.1)
XYZ	xyz(21.9642, 13.5461, 6.0146)
Luminance	0.1354 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73B3E #3BB7B4

analogous

#B73B7C #B73B3E #B7763B

triadic

#B73B3E #3EB73B #3B3EB7

tetradic

#B73B3E #7CB73B #3BB7B4 #763BB7

square

#B73B3E #7CB73B #3BB7B4 #763BB7

split-complementary

#B73B3E #3BB776 #3B7CB7

monochromatic

#5A1D1F #892C2E #B73B3E #CD6365 #DC9193

Accessibility & contrast

On white

5.66

#B73B3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B73B3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73B3E

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73B3E	#FFFFFF	#000000	##FFFFFF
##B73B3E	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D563D

Deuteranopia (green-blind)

#7C713A

Tritanopia (blue-blind)

#C91B3D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73b3e;
/* rgb */ color: rgb(183, 59, 62);
/* oklch */ color: oklch(53.3% 0.160 23.1);

Tailwind

colors: {
  custom: {
    50: '#d47873',
    500: '#b73b3e',
    950: '#000000',
  },
}

SCSS

$custom: #b73b3e;
$custom-light: #d47873;
$custom-dark: #000000;

JSON

{
  "hex": "#b73b3e",
  "rgb": {
    "r": 183,
    "g": 59,
    "b": 62
  },
  "hsl": {
    "h": 358.548,
    "s": 51.24,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53289,
    "c": 0.1599,
    "h": 23.1
  },
  "luminance": 0.13543
}

Semantic roles & 50–950 ramp

primary

#B73B3E

secondary

#87C6C5

accent

#DBD74D

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73B3E

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

Preview Lab → · Contrast checker → · Palette generator →