#B73A47#B73A47

#B73A47 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.3% C 0.160 H 18.6°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B73A47
RGB	rgb(183, 58, 71)
HSL	hsl(354, 52%, 47%)
HSV	hsv(354, 68%, 72%)
CMYK	cmyk(0%, 68.3%, 61.2%, 28.2%)
CIE-LAB	lab(43.58, 51.01, 21.08)
CIE-LCH	lch(43.58, 55.20, 22.45°)
OKLab	oklab(53.35% 0.1519 0.0512)
OKLCH	oklch(53.35% 0.16 18.6)
XYZ	xyz(22.1810, 13.5514, 7.4077)
Luminance	0.1355 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73A47 #3AB7AA

analogous

#B73A86 #B73A47 #B76C3A

triadic

#B73A47 #47B73A #3A47B7

tetradic

#B73A47 #86B73A #3AB7AA #6C3AB7

square

#B73A47 #86B73A #3AB7AA #6C3AB7

split-complementary

#B73A47 #3AB76C #3A86B7

monochromatic

#5A1D23 #892B35 #B73A47 #CD616C #DC9098

Accessibility & contrast

On white

5.66

#B73A47 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B73A47 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73A47

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73A47	#FFFFFF	#000000	##FFFFFF
##B73A47	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)

#5B5647

Deuteranopia (green-blind)

#7A7144

Tritanopia (blue-blind)

#C81C40

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73a47;
/* rgb */ color: rgb(183, 58, 71);
/* oklch */ color: oklch(53.3% 0.160 18.6);

Tailwind

colors: {
  custom: {
    50: '#d3787a',
    500: '#b73a47',
    950: '#000000',
  },
}

SCSS

$custom: #b73a47;
$custom-light: #d3787a;
$custom-dark: #000000;

JSON

{
  "hex": "#b73a47",
  "rgb": {
    "r": 183,
    "g": 58,
    "b": 71
  },
  "hsl": {
    "h": 353.76,
    "s": 51.867,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53345,
    "c": 0.16033,
    "h": 18.6
  },
  "luminance": 0.13548
}

Semantic roles & 50–950 ramp

primary

#B73A47

secondary

#86C7C0

accent

#DBCC4C

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B73A47

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

Preview Lab → · Contrast checker → · Palette generator →