#B73640#B73640

#B73640 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.8% C 0.165 H 20.7°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B73640
RGB	rgb(183, 54, 64)
HSL	hsl(355, 54%, 46%)
HSV	hsv(355, 70%, 72%)
CMYK	cmyk(0%, 70.5%, 65%, 28.2%)
CIE-LAB	lab(42.88, 52.15, 24.46)
CIE-LCH	lch(42.88, 57.60, 25.13°)
OKLab	oklab(52.78% 0.1542 0.0582)
OKLCH	oklch(52.78% 0.165 20.7)
XYZ	xyz(21.7753, 13.0789, 6.2274)
Luminance	0.1308 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73640 #36B7AD

analogous

#B73681 #B73640 #B76D36

triadic

#B73640 #40B736 #3640B7

tetradic

#B73640 #81B736 #36B7AD #6D36B7

square

#B73640 #81B736 #36B7AD #6D36B7

split-complementary

#B73640 #36B76D #3681B7

monochromatic

#581A1F #88282F #B73640 #CF5B64 #DD8B91

Accessibility & contrast

On white

5.81

#B73640 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B73640 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73640

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73640	#FFFFFF	#000000	##FFFFFF
##B73640	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543F

Deuteranopia (green-blind)

#7A6F3C

Tritanopia (blue-blind)

#C90F3B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b73640;
/* rgb */ color: rgb(183, 54, 64);
/* oklch */ color: oklch(52.8% 0.165 20.7);

Tailwind

colors: {
  custom: {
    50: '#d47674',
    500: '#b73640',
    950: '#000000',
  },
}

SCSS

$custom: #b73640;
$custom-light: #d47674;
$custom-dark: #000000;

JSON

{
  "hex": "#b73640",
  "rgb": {
    "r": 183,
    "g": 54,
    "b": 64
  },
  "hsl": {
    "h": 355.349,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52782,
    "c": 0.16482,
    "h": 20.7
  },
  "luminance": 0.13076
}

Semantic roles & 50–950 ramp

primary

#B73640

secondary

#82C7C2

accent

#DED24A

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73640

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

Preview Lab → · Contrast checker → · Palette generator →