#B73C31#B73C31

#B73C31 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.161 H 28.7°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B73C31
RGB	rgb(183, 60, 49)
HSL	hsl(5, 58%, 45%)
HSV	hsv(5, 73%, 72%)
CMYK	cmyk(0%, 67.2%, 73.2%, 28.2%)
CIE-LAB	lab(43.54, 48.95, 34.17)
CIE-LCH	lch(43.54, 59.70, 34.92°)
OKLab	oklab(53.21% 0.141 0.0773)
OKLCH	oklch(53.21% 0.161 28.7)
XYZ	xyz(21.7010, 13.5239, 4.3728)
Luminance	0.1352 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73C31 #31ACB7

analogous

#B73169 #B73C31 #B77F31

triadic

#B73C31 #31B73C #3C31B7

tetradic

#B73C31 #69B731 #31ACB7 #7F31B7

square

#B73C31 #69B731 #31ACB7 #7F31B7

split-complementary

#B73C31 #31B77F #3169B7

monochromatic

#561C17 #872C24 #B73C31 #D15E54 #DE8C84

Accessibility & contrast

On white

5.67

#B73C31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B73C31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73C31

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73C31	#FFFFFF	#000000	##FFFFFF
##B73C31	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F562F

Deuteranopia (green-blind)

#7D712D

Tritanopia (blue-blind)

#C9193A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73c31;
/* rgb */ color: rgb(183, 60, 49);
/* oklch */ color: oklch(53.2% 0.161 28.7);

Tailwind

colors: {
  custom: {
    50: '#d4796a',
    500: '#b73c31',
    950: '#000000',
  },
}

SCSS

$custom: #b73c31;
$custom-light: #d4796a;
$custom-dark: #000000;

JSON

{
  "hex": "#b73c31",
  "rgb": {
    "r": 183,
    "g": 60,
    "b": 49
  },
  "hsl": {
    "h": 4.925,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53205,
    "c": 0.16079,
    "h": 28.7
  },
  "luminance": 0.13521
}

Semantic roles & 50–950 ramp

primary

#B73C31

secondary

#7CC1C8

accent

#D4E147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73C31

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

Preview Lab → · Contrast checker → · Palette generator →