#B3281D#B3281D

#B3281D is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.3% C 0.177 H 29.4°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX#B3281D
RGBrgb(179, 40, 29)
HSLhsl(4, 72%, 41%)
HSVhsv(4, 84%, 70%)
CMYKcmyk(0%, 77.7%, 83.8%, 29.8%)
CIE-LABlab(39.90, 54.30, 41.16)
CIE-LCHlch(39.90, 68.14, 37.17°)
OKLaboklab(50.28% 0.1542 0.0869)
OKLCHoklch(50.28% 0.177 29.4)
XYZxyz(19.5734, 11.1932, 2.2920)
Luminance0.1119 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B3281D #1DA8B3
analogous
#B31D5D #B3281D #B3731D
triadic
#B3281D #1DB328 #281DB3
tetradic
#B3281D #5DB31D #1DA8B3 #731DB3
square
#B3281D #5DB31D #1DA8B3 #731DB3
split-complementary
#B3281D #1DB373 #1D5DB3
monochromatic
#4A100C #7E1C14 #B3281D #DD3D30 #E66E64

Accessibility & contrast

On white

6.49
#B3281D on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.24
#B3281D on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3281D
6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B3281D#FFFFFF#000000##FFFFFF
##B3281D1.006.493.246.49
#FFFFFF6.491.0021.001.00
#0000003.2421.001.0021.00
##FFFFFF6.491.0021.001.00

Color blindness preview

Protanopia (red-blind)
#544B1A
Deuteranopia (green-blind)
#766915
Tritanopia (blue-blind)
#C60027
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #b3281d;
/* rgb */ color: rgb(179, 40, 29);
/* oklch */ color: oklch(50.3% 0.177 29.4);
Tailwind
colors: {
  custom: {
    50: '#d46e5b',
    500: '#b3281d',
    950: '#000000',
  },
}
SCSS
$custom: #b3281d;
$custom-light: #d46e5b;
$custom-dark: #000000;
JSON
{
  "hex": "#b3281d",
  "rgb": {
    "r": 179,
    "g": 40,
    "b": 29
  },
  "hsl": {
    "h": 4.4,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50283,
    "c": 0.17698,
    "h": 29.4
  },
  "luminance": 0.1119
}

Semantic roles & 50–950 ramp

primary
#B3281D
secondary
#61C3CB
accent
#E1EF39
background
#FEF7F5
surface
#FCEDE9
border
#D5C8C5
text
#160804
muted
#847B79

Preview Lab

Preview with #B3281D

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

Preview Lab → · Contrast checker → · Palette generator →

#B3281D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva