#B73D3A#B73D3A

#B73D3A is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.5% C 0.158 H 25.5°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#B73D3A
RGB	rgb(183, 61, 58)
HSL	hsl(1, 52%, 47%)
HSV	hsv(1, 68%, 72%)
CMYK	cmyk(0%, 66.7%, 68.3%, 28.2%)
CIE-LAB	lab(43.82, 48.98, 29.24)
CIE-LCH	lch(43.82, 57.05, 30.83°)
OKLab	oklab(53.45% 0.143 0.0681)
OKLCH	oklch(53.45% 0.158 25.5)
XYZ	xyz(21.9632, 13.7134, 5.4926)
Luminance	0.1371 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73D3A #3AB4B7

analogous

#B73A76 #B73D3A #B77C3A

triadic

#B73D3A #3AB73D #3D3AB7

tetradic

#B73D3A #76B73A #3AB4B7 #7C3AB7

square

#B73D3A #76B73A #3AB4B7 #7C3AB7

split-complementary

#B73D3A #3AB77C #3A76B7

monochromatic

#5A1E1D #892E2B #B73D3A #CD6461 #DC9290

Accessibility & contrast

On white

5.61

#B73D3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#B73D3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73D3A

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73D3A	#FFFFFF	#000000	##FFFFFF
##B73D3A	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5739

Deuteranopia (green-blind)

#7D7136

Tritanopia (blue-blind)

#C91D3D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73d3a;
/* rgb */ color: rgb(183, 61, 58);
/* oklch */ color: oklch(53.5% 0.158 25.5);

Tailwind

colors: {
  custom: {
    50: '#d47970',
    500: '#b73d3a',
    950: '#000000',
  },
}

SCSS

$custom: #b73d3a;
$custom-light: #d47970;
$custom-dark: #000000;

JSON

{
  "hex": "#b73d3a",
  "rgb": {
    "r": 183,
    "g": 61,
    "b": 58
  },
  "hsl": {
    "h": 1.44,
    "s": 51.867,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53452,
    "c": 0.15835,
    "h": 25.5
  },
  "luminance": 0.1371
}

Semantic roles & 50–950 ramp

primary

#B73D3A

secondary

#86C5C7

accent

#D8DB4C

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B73D3A

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

Preview Lab → · Contrast checker → · Palette generator →