#B22337#B22337

#B22337 is a mid, vivid red. Relative luminance 0.109; OKLCH L 50.0% C 0.177 H 19.7°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX#B22337
RGBrgb(178, 35, 55)
HSLhsl(352, 67%, 42%)
HSVhsv(352, 80%, 70%)
CMYKcmyk(0%, 80.3%, 69.1%, 30.2%)
CIE-LABlab(39.49, 56.49, 25.55)
CIE-LCHlch(39.49, 62.00, 24.34°)
OKLaboklab(50.04% 0.1668 0.0597)
OKLCHoklch(50.04% 0.177 19.7)
XYZxyz(19.6529, 10.9459, 4.6917)
Luminance0.1094 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B22337 #23B29E
analogous
#B2237F #B22337 #B25623
triadic
#B22337 #37B223 #2337B2
tetradic
#B22337 #7FB223 #23B29E #5623B2
square
#B22337 #7FB223 #23B29E #5623B2
split-complementary
#B22337 #23B256 #237FB2
monochromatic
#4C0F17 #7F1927 #B22337 #D83A50 #E26D7D

Accessibility & contrast

On white

6.59
#B22337 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.19
#B22337 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B22337
6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B22337#FFFFFF#000000##FFFFFF
##B223371.006.593.196.59
#FFFFFF6.591.0021.001.00
#0000003.1921.001.0021.00
##FFFFFF6.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4F4A37
Deuteranopia (green-blind)
#726832
Tritanopia (blue-blind)
#C4002C
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #b22337;
/* rgb */ color: rgb(178, 35, 55);
/* oklch */ color: oklch(50.0% 0.177 19.7);
Tailwind
colors: {
  custom: {
    50: '#d16d6d',
    500: '#b22337',
    950: '#000000',
  },
}
SCSS
$custom: #b22337;
$custom-light: #d16d6d;
$custom-dark: #000000;
JSON
{
  "hex": "#b22337",
  "rgb": {
    "r": 178,
    "g": 35,
    "b": 55
  },
  "hsl": {
    "h": 351.608,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.50039,
    "c": 0.17718,
    "h": 19.7
  },
  "luminance": 0.10943
}

Semantic roles & 50–950 ramp

primary
#B22337
secondary
#68C9BB
accent
#EAD23E
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160807
muted
#847B7A

Preview Lab

Preview with #B22337

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

Preview Lab → · Contrast checker → · Palette generator →

#B22337 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva