#B73A4A#B73A4A

#B73A4A is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.160 H 17.2°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B73A4A
RGB	rgb(183, 58, 74)
HSL	hsl(352, 52%, 47%)
HSV	hsv(352, 68%, 72%)
CMYK	cmyk(0%, 68.3%, 59.6%, 28.2%)
CIE-LAB	lab(43.64, 51.22, 19.32)
CIE-LCH	lch(43.64, 54.74, 20.66°)
OKLab	oklab(53.41% 0.1531 0.0473)
OKLCH	oklch(53.41% 0.16 17.2)
XYZ	xyz(22.2797, 13.5909, 7.9273)
Luminance	0.1359 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73A4A #3AB7A7

analogous

#B73A89 #B73A4A #B7693A

triadic

#B73A4A #4AB73A #3A4AB7

tetradic

#B73A4A #89B73A #3AB7A7 #693AB7

square

#B73A4A #89B73A #3AB7A7 #693AB7

split-complementary

#B73A4A #3AB769 #3A89B7

monochromatic

#5A1D24 #892B37 #B73A4A #CD616F #DC9099

Accessibility & contrast

On white

5.65

#B73A4A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B73A4A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73A4A

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73A4A	#FFFFFF	#000000	##FFFFFF
##B73A4A	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A574A

Deuteranopia (green-blind)

#7A7147

Tritanopia (blue-blind)

#C81D41

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73a4a;
/* rgb */ color: rgb(183, 58, 74);
/* oklch */ color: oklch(53.4% 0.160 17.2);

Tailwind

colors: {
  custom: {
    50: '#d3787c',
    500: '#b73a4a',
    950: '#000000',
  },
}

SCSS

$custom: #b73a4a;
$custom-light: #d3787c;
$custom-dark: #000000;

JSON

{
  "hex": "#b73a4a",
  "rgb": {
    "r": 183,
    "g": 58,
    "b": 74
  },
  "hsl": {
    "h": 352.32,
    "s": 51.867,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53407,
    "c": 0.16028,
    "h": 17.2
  },
  "luminance": 0.13588
}

Semantic roles & 50–950 ramp

primary

#B73A4A

secondary

#86C7BE

accent

#DBC94C

background

#FDF7F7

surface

#FBEEEE

border

#D4C9C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B73A4A

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

Preview Lab → · Contrast checker → · Palette generator →