#B73440#B73440

#B73440 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.6% C 0.167 H 20.1°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#B73440
RGB	rgb(183, 52, 64)
HSL	hsl(355, 56%, 46%)
HSV	hsv(355, 72%, 72%)
CMYK	cmyk(0%, 71.6%, 65%, 28.2%)
CIE-LAB	lab(42.61, 52.90, 24.12)
CIE-LCH	lch(42.61, 58.14, 24.51°)
OKLab	oklab(52.58% 0.1566 0.0574)
OKLCH	oklch(52.58% 0.167 20.1)
XYZ	xyz(21.6841, 12.8966, 6.1970)
Luminance	0.1289 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73440 #34B7AB

analogous

#B73481 #B73440 #B76934

triadic

#B73440 #40B734 #3440B7

tetradic

#B73440 #81B734 #34B7AB #6934B7

square

#B73440 #81B734 #34B7AB #6934B7

split-complementary

#B73440 #34B769 #3481B7

monochromatic

#58191F #87262F #B73440 #D05963 #DD8890

Accessibility & contrast

On white

5.87

#B73440 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B73440 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73440

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73440	#FFFFFF	#000000	##FFFFFF
##B73440	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58533F

Deuteranopia (green-blind)

#796F3C

Tritanopia (blue-blind)

#C90839

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b73440;
/* rgb */ color: rgb(183, 52, 64);
/* oklch */ color: oklch(52.6% 0.167 20.1);

Tailwind

colors: {
  custom: {
    50: '#d47574',
    500: '#b73440',
    950: '#000000',
  },
}

SCSS

$custom: #b73440;
$custom-light: #d47574;
$custom-dark: #000000;

JSON

{
  "hex": "#b73440",
  "rgb": {
    "r": 183,
    "g": 52,
    "b": 64
  },
  "hsl": {
    "h": 354.504,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52577,
    "c": 0.16681,
    "h": 20.1
  },
  "luminance": 0.12893
}

Semantic roles & 50–950 ramp

primary

#B73440

secondary

#80C7C1

accent

#DFD149

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73440

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

Preview Lab → · Contrast checker → · Palette generator →