#B73333#B73333

#B73333 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.3% C 0.169 H 25.2°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX#B73333
RGBrgb(183, 51, 51)
HSLhsl(0, 56%, 46%)
HSVhsv(0, 72%, 72%)
CMYKcmyk(0%, 72.1%, 72.1%, 28.2%)
CIE-LABlab(42.27, 52.59, 31.55)
CIE-LCHlch(42.27, 61.32, 30.96°)
OKLaboklab(52.26% 0.1529 0.072)
OKLCHoklch(52.26% 0.169 25.2)
XYZxyz(21.3122, 12.6772, 4.4561)
Luminance0.1267 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B73333 #33B7B7
analogous
#B73375 #B73333 #B77533
triadic
#B73333 #33B733 #3333B7
tetradic
#B73333 #75B733 #33B7B7 #7533B7
square
#B73333 #75B733 #33B7B7 #7533B7
split-complementary
#B73333 #33B775 #3375B7
monochromatic
#571818 #872626 #B73333 #D05757 #DE8787

Accessibility & contrast

On white

5.94
#B73333 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.53
#B73333 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73333
5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B73333#FFFFFF#000000##FFFFFF
##B733331.005.943.535.94
#FFFFFF5.941.0021.001.00
#0000003.5321.001.0021.00
##FFFFFF5.941.0021.001.00

Color blindness preview

Protanopia (red-blind)
#595232
Deuteranopia (green-blind)
#7A6E2F
Tritanopia (blue-blind)
#C90035
Achromatopsia (no color)
#646464

Design tokens & code

CSS
--color: #b73333;
/* rgb */ color: rgb(183, 51, 51);
/* oklch */ color: oklch(52.3% 0.169 25.2);
Tailwind
colors: {
  custom: {
    50: '#d5746b',
    500: '#b73333',
    950: '#000000',
  },
}
SCSS
$custom: #b73333;
$custom-light: #d5746b;
$custom-dark: #000000;
JSON
{
  "hex": "#b73333",
  "rgb": {
    "r": 183,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52264,
    "c": 0.16896,
    "h": 25.2
  },
  "luminance": 0.12674
}

Semantic roles & 50–950 ramp

primary
#B73333
secondary
#7FC7C7
accent
#E0E048
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160906
muted
#847B7A

Preview Lab

Preview with #B73333

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

Preview Lab → · Contrast checker → · Palette generator →

#B73333 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva