#B73745#B73745

#B73745 is a mid, vivid red. Relative luminance 0.132; OKLCH L 53.0% C 0.164 H 18.7°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#B73745
RGB	rgb(183, 55, 69)
HSL	hsl(353, 54%, 47%)
HSV	hsv(353, 70%, 72%)
CMYK	cmyk(0%, 69.9%, 62.3%, 28.2%)
CIE-LAB	lab(43.11, 52.07, 21.70)
CIE-LCH	lch(43.11, 56.41, 22.62°)
OKLab	oklab(52.98% 0.1549 0.0524)
OKLCH	oklch(52.98% 0.164 18.7)
XYZ	xyz(21.9710, 13.2324, 7.0263)
Luminance	0.1323 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73745 #37B7A9

analogous

#B73785 #B73745 #B76937

triadic

#B73745 #45B737 #3745B7

tetradic

#B73745 #85B737 #37B7A9 #6937B7

square

#B73745 #85B737 #37B7A9 #6937B7

split-complementary

#B73745 #37B769 #3785B7

monochromatic

#591B22 #882933 #B73745 #CE5D69 #DC8C95

Accessibility & contrast

On white

5.76

#B73745 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B73745 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73745

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73745	#FFFFFF	#000000	##FFFFFF
##B73745	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595545

Deuteranopia (green-blind)

#7A7042

Tritanopia (blue-blind)

#C9143D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73745;
/* rgb */ color: rgb(183, 55, 69);
/* oklch */ color: oklch(53.0% 0.164 18.7);

Tailwind

colors: {
  custom: {
    50: '#d37678',
    500: '#b73745',
    950: '#000000',
  },
}

SCSS

$custom: #b73745;
$custom-light: #d37678;
$custom-dark: #000000;

JSON

{
  "hex": "#b73745",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 69
  },
  "hsl": {
    "h": 353.438,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52982,
    "c": 0.16357,
    "h": 18.7
  },
  "luminance": 0.13229
}

Semantic roles & 50–950 ramp

primary

#B73745

secondary

#83C7BF

accent

#DDCD4B

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B73745

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

Preview Lab → · Contrast checker → · Palette generator →