#B33E21#B33E21

#B33E21 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.6% C 0.158 H 34.9°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX#B33E21
RGBrgb(179, 62, 33)
HSLhsl(12, 69%, 42%)
HSVhsv(12, 82%, 70%)
CMYKcmyk(0%, 65.4%, 81.6%, 29.8%)
CIE-LABlab(42.98, 46.08, 42.02)
CIE-LCHlch(42.98, 62.36, 42.36°)
OKLaboklab(52.59% 0.1294 0.0902)
OKLCHoklch(52.59% 0.158 34.9)
XYZxyz(20.5899, 13.1418, 2.8910)
Luminance0.1314 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B33E21 #2196B3
analogous
#B3214D #B33E21 #B38721
triadic
#B33E21 #21B33E #3E21B3
tetradic
#B33E21 #4DB321 #2196B3 #8721B3
square
#B33E21 #4DB321 #2196B3 #8721B3
split-complementary
#B33E21 #21B387 #214DB3
monochromatic
#4C1A0E #7F2C17 #B33E21 #DA5737 #E4836B

Accessibility & contrast

On white

5.79
#B33E21 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.63
#B33E21 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E21
5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B33E21#FFFFFF#000000##FFFFFF
##B33E211.005.793.635.79
#FFFFFF5.791.0021.001.00
#0000003.6321.001.0021.00
##FFFFFF5.791.0021.001.00

Color blindness preview

Protanopia (red-blind)
#60551C
Deuteranopia (green-blind)
#7D6F1C
Tritanopia (blue-blind)
#C51C38
Achromatopsia (no color)
#656565

Design tokens & code

CSS
--color: #b33e21;
/* rgb */ color: rgb(179, 62, 33);
/* oklch */ color: oklch(52.6% 0.158 34.9);
Tailwind
colors: {
  custom: {
    50: '#d2795f',
    500: '#b33e21',
    950: '#000000',
  },
}
SCSS
$custom: #b33e21;
$custom-light: #d2795f;
$custom-dark: #000000;
JSON
{
  "hex": "#b33e21",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 33
  },
  "hsl": {
    "h": 11.918,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.52593,
    "c": 0.15774,
    "h": 34.9
  },
  "luminance": 0.13139
}

Semantic roles & 50–950 ramp

primary
#B33E21
secondary
#66B6CA
accent
#C9EC3C
background
#FEF7F5
surface
#FCEEE9
border
#D5C9C5
text
#160905
muted
#847B79

Preview Lab

Preview with #B33E21

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

Preview Lab → · Contrast checker → · Palette generator →

#B33E21 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva