#B3221D#B3221D

#B3221D is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.181 H 28.2°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX#B3221D
RGBrgb(179, 34, 29)
HSLhsl(2, 72%, 41%)
HSVhsv(2, 84%, 70%)
CMYKcmyk(0%, 81%, 83.8%, 29.8%)
CIE-LABlab(39.27, 56.07, 40.58)
CIE-LCHlch(39.27, 69.22, 35.90°)
OKLaboklab(49.82% 0.1597 0.0855)
OKLCHoklch(49.82% 0.181 28.2)
XYZxyz(19.3866, 10.8196, 2.2298)
Luminance0.1082 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B3221D #1DAEB3
analogous
#B31D63 #B3221D #B36D1D
triadic
#B3221D #1DB322 #221DB3
tetradic
#B3221D #63B31D #1DAEB3 #6D1DB3
square
#B3221D #63B31D #1DAEB3 #6D1DB3
split-complementary
#B3221D #1DB36D #1D63B3
monochromatic
#4A0E0C #7E1814 #B3221D #DD3630 #E66964

Accessibility & contrast

On white

6.64
#B3221D on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.16
#B3221D on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3221D
6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B3221D#FFFFFF#000000##FFFFFF
##B3221D1.006.643.166.64
#FFFFFF6.641.0021.001.00
#0000003.1621.001.0021.00
##FFFFFF6.641.0021.001.00

Color blindness preview

Protanopia (red-blind)
#51481A
Deuteranopia (green-blind)
#756815
Tritanopia (blue-blind)
#C60023
Achromatopsia (no color)
#5C5C5C

Design tokens & code

CSS
--color: #b3221d;
/* rgb */ color: rgb(179, 34, 29);
/* oklch */ color: oklch(49.8% 0.181 28.2);
Tailwind
colors: {
  custom: {
    50: '#d46c5b',
    500: '#b3221d',
    950: '#000000',
  },
}
SCSS
$custom: #b3221d;
$custom-light: #d46c5b;
$custom-dark: #000000;
JSON
{
  "hex": "#b3221d",
  "rgb": {
    "r": 179,
    "g": 34,
    "b": 29
  },
  "hsl": {
    "h": 2,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.49815,
    "c": 0.1812,
    "h": 28.2
  },
  "luminance": 0.10816
}

Semantic roles & 50–950 ramp

primary
#B3221D
secondary
#61C7CB
accent
#E9EF39
background
#FEF6F5
surface
#FDECE9
border
#D5C7C5
text
#160804
muted
#847A79

Preview Lab

Preview with #B3221D

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

Preview Lab → · Contrast checker → · Palette generator →

#B3221D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva