#B73741#B73741

#B73741 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.9% C 0.164 H 20.5°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B73741
RGB	rgb(183, 55, 65)
HSL	hsl(355, 54%, 47%)
HSV	hsv(355, 70%, 72%)
CMYK	cmyk(0%, 69.9%, 64.5%, 28.2%)
CIE-LAB	lab(43.04, 51.82, 24.05)
CIE-LCH	lch(43.04, 57.13, 24.90°)
OKLab	oklab(52.91% 0.1534 0.0574)
OKLCH	oklch(52.91% 0.164 20.5)
XYZ	xyz(21.8510, 13.1844, 6.3943)
Luminance	0.1318 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73741 #37B7AD

analogous

#B73781 #B73741 #B76D37

triadic

#B73741 #41B737 #3741B7

tetradic

#B73741 #81B737 #37B7AD #6D37B7

square

#B73741 #81B737 #37B7AD #6D37B7

split-complementary

#B73741 #37B76D #3781B7

monochromatic

#591B20 #882930 #B73741 #CE5D66 #DC8C92

Accessibility & contrast

On white

5.78

#B73741 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B73741 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73741

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73741	#FFFFFF	#000000	##FFFFFF
##B73741	1.00	5.78	3.64	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5440

Deuteranopia (green-blind)

#7A703D

Tritanopia (blue-blind)

#C9123C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73741;
/* rgb */ color: rgb(183, 55, 65);
/* oklch */ color: oklch(52.9% 0.164 20.5);

Tailwind

colors: {
  custom: {
    50: '#d47675',
    500: '#b73741',
    950: '#000000',
  },
}

SCSS

$custom: #b73741;
$custom-light: #d47675;
$custom-dark: #000000;

JSON

{
  "hex": "#b73741",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 65
  },
  "hsl": {
    "h": 355.313,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52905,
    "c": 0.16375,
    "h": 20.5
  },
  "luminance": 0.13181
}

Semantic roles & 50–950 ramp

primary

#B73741

secondary

#83C7C2

accent

#DDD24B

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73741

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

Preview Lab → · Contrast checker → · Palette generator →