#B73B4B#B73B4B

#B73B4B is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.5% C 0.159 H 17.0°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#B73B4B
RGB	rgb(183, 59, 75)
HSL	hsl(352, 51%, 47%)
HSV	hsv(352, 68%, 72%)
CMYK	cmyk(0%, 67.8%, 59%, 28.2%)
CIE-LAB	lab(43.81, 50.88, 18.92)
CIE-LCH	lch(43.81, 54.29, 20.40°)
OKLab	oklab(53.54% 0.1522 0.0465)
OKLCH	oklch(53.54% 0.159 17)
XYZ	xyz(22.3645, 13.7063, 8.1232)
Luminance	0.1370 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73B4B #3BB7A7

analogous

#B73B89 #B73B4B #B7693B

triadic

#B73B4B #4BB73B #3B4BB7

tetradic

#B73B4B #89B73B #3BB7A7 #693BB7

square

#B73B4B #89B73B #3BB7A7 #693BB7

split-complementary

#B73B4B #3BB769 #3B89B7

monochromatic

#5A1D25 #892C38 #B73B4B #CD6370 #DC919B

Accessibility & contrast

On white

5.61

#B73B4B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#B73B4B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73B4B

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73B4B	#FFFFFF	#000000	##FFFFFF
##B73B4B	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)

#5B574B

Deuteranopia (green-blind)

#7A7148

Tritanopia (blue-blind)

#C81F42

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73b4b;
/* rgb */ color: rgb(183, 59, 75);
/* oklch */ color: oklch(53.5% 0.159 17.0);

Tailwind

colors: {
  custom: {
    50: '#d3797d',
    500: '#b73b4b',
    950: '#000000',
  },
}

SCSS

$custom: #b73b4b;
$custom-light: #d3797d;
$custom-dark: #000000;

JSON

{
  "hex": "#b73b4b",
  "rgb": {
    "r": 183,
    "g": 59,
    "b": 75
  },
  "hsl": {
    "h": 352.258,
    "s": 51.24,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53539,
    "c": 0.15917,
    "h": 17
  },
  "luminance": 0.13703
}

Semantic roles & 50–950 ramp

primary

#B73B4B

secondary

#87C6BE

accent

#DBC84D

background

#FDF7F7

surface

#FBEEEE

border

#D4C9C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B73B4B

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

Preview Lab → · Contrast checker → · Palette generator →