#B3281C#B3281C

#B3281C is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.3% C 0.177 H 29.6°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX#B3281C
RGBrgb(179, 40, 28)
HSLhsl(5, 73%, 41%)
HSVhsv(5, 84%, 70%)
CMYKcmyk(0%, 77.7%, 84.4%, 29.8%)
CIE-LABlab(39.90, 54.27, 41.67)
CIE-LCHlch(39.90, 68.42, 37.52°)
OKLaboklab(50.27% 0.1539 0.0876)
OKLCHoklch(50.27% 0.177 29.6)
XYZxyz(19.5612, 11.1883, 2.2280)
Luminance0.1119 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B3281C #1CA7B3
analogous
#B31C5B #B3281C #B3731C
triadic
#B3281C #1CB328 #281CB3
tetradic
#B3281C #5BB31C #1CA7B3 #731CB3
square
#B3281C #5BB31C #1CA7B3 #731CB3
split-complementary
#B3281C #1CB373 #1C5BB3
monochromatic
#49100B #7E1C14 #B3281C #DE3C2E #E76D63

Accessibility & contrast

On white

6.49
#B3281C on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.24
#B3281C on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3281C
6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B3281C#FFFFFF#000000##FFFFFF
##B3281C1.006.493.246.49
#FFFFFF6.491.0021.001.00
#0000003.2421.001.0021.00
##FFFFFF6.491.0021.001.00

Color blindness preview

Protanopia (red-blind)
#544B19
Deuteranopia (green-blind)
#766914
Tritanopia (blue-blind)
#C60027
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #b3281c;
/* rgb */ color: rgb(179, 40, 28);
/* oklch */ color: oklch(50.3% 0.177 29.6);
Tailwind
colors: {
  custom: {
    50: '#d46e5a',
    500: '#b3281c',
    950: '#000000',
  },
}
SCSS
$custom: #b3281c;
$custom-light: #d46e5a;
$custom-dark: #000000;
JSON
{
  "hex": "#b3281c",
  "rgb": {
    "r": 179,
    "g": 40,
    "b": 28
  },
  "hsl": {
    "h": 4.768,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50274,
    "c": 0.17711,
    "h": 29.6
  },
  "luminance": 0.11185
}

Semantic roles & 50–950 ramp

primary
#B3281C
secondary
#5FC3CB
accent
#E1F038
background
#FEF7F5
surface
#FCEDE9
border
#D5C8C5
text
#160804
muted
#847B79

Preview Lab

Preview with #B3281C

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

Preview Lab → · Contrast checker → · Palette generator →

#B3281C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva