#B73733#B73733

#B73733 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.7% C 0.165 H 26.4°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B73733
RGB	rgb(183, 55, 51)
HSL	hsl(2, 56%, 46%)
HSV	hsv(2, 72%, 72%)
CMYK	cmyk(0%, 69.9%, 72.1%, 28.2%)
CIE-LAB	lab(42.83, 51.06, 32.19)
CIE-LCH	lch(42.83, 60.36, 32.23°)
OKLab	oklab(52.68% 0.1481 0.0734)
OKLCH	oklch(52.68% 0.165 26.4)
XYZ	xyz(21.4945, 13.0419, 4.5168)
Luminance	0.1304 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73733 #33B3B7

analogous

#B73371 #B73733 #B77933

triadic

#B73733 #33B737 #3733B7

tetradic

#B73733 #71B733 #33B3B7 #7933B7

square

#B73733 #71B733 #33B3B7 #7933B7

split-complementary

#B73733 #33B779 #3371B7

monochromatic

#571A18 #872926 #B73733 #D05B57 #DE8A87

Accessibility & contrast

On white

5.82

#B73733 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B73733 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73733

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73733	#FFFFFF	#000000	##FFFFFF
##B73733	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5331

Deuteranopia (green-blind)

#7B6F2F

Tritanopia (blue-blind)

#C90B37

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b73733;
/* rgb */ color: rgb(183, 55, 51);
/* oklch */ color: oklch(52.7% 0.165 26.4);

Tailwind

colors: {
  custom: {
    50: '#d5766b',
    500: '#b73733',
    950: '#000000',
  },
}

SCSS

$custom: #b73733;
$custom-light: #d5766b;
$custom-dark: #000000;

JSON

{
  "hex": "#b73733",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 1.818,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52677,
    "c": 0.16525,
    "h": 26.4
  },
  "luminance": 0.13039
}

Semantic roles & 50–950 ramp

primary

#B73733

secondary

#7FC5C7

accent

#DBE048

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73733

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

Preview Lab → · Contrast checker → · Palette generator →