#B73347#B73347

#B73347 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.6% C 0.168 H 16.7°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#B73347
RGB	rgb(183, 51, 71)
HSL	hsl(351, 56%, 46%)
HSV	hsv(351, 72%, 72%)
CMYK	cmyk(0%, 72.1%, 61.2%, 28.2%)
CIE-LAB	lab(42.60, 53.71, 19.80)
CIE-LCH	lch(42.60, 57.24, 20.23°)
OKLab	oklab(52.61% 0.1606 0.0482)
OKLCH	oklch(52.61% 0.168 16.7)
XYZ	xyz(21.8518, 12.8930, 7.2980)
Luminance	0.1289 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73347 #33B7A3

analogous

#B73389 #B73347 #B76133

triadic

#B73347 #47B733 #3347B7

tetradic

#B73347 #89B733 #33B7A3 #6133B7

square

#B73347 #89B733 #33B7A3 #6133B7

split-complementary

#B73347 #33B761 #3389B7

monochromatic

#571822 #872634 #B73347 #D05769 #DE8794

Accessibility & contrast

On white

5.87

#B73347 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B73347 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73347

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73347	#FFFFFF	#000000	##FFFFFF
##B73347	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565347

Deuteranopia (green-blind)

#786F43

Tritanopia (blue-blind)

#C80A3B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b73347;
/* rgb */ color: rgb(183, 51, 71);
/* oklch */ color: oklch(52.6% 0.168 16.7);

Tailwind

colors: {
  custom: {
    50: '#d3747a',
    500: '#b73347',
    950: '#000000',
  },
}

SCSS

$custom: #b73347;
$custom-light: #d3747a;
$custom-dark: #000000;

JSON

{
  "hex": "#b73347",
  "rgb": {
    "r": 183,
    "g": 51,
    "b": 71
  },
  "hsl": {
    "h": 350.909,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52614,
    "c": 0.16764,
    "h": 16.7
  },
  "luminance": 0.1289
}

Semantic roles & 50–950 ramp

primary

#B73347

secondary

#7FC7BC

accent

#E0C948

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B73347

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

Preview Lab → · Contrast checker → · Palette generator →