#B3281E#B3281E

#B3281E is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.3% C 0.177 H 29.1°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX#B3281E
RGBrgb(179, 40, 30)
HSLhsl(4, 71%, 41%)
HSVhsv(4, 83%, 70%)
CMYKcmyk(0%, 77.7%, 83.2%, 29.8%)
CIE-LABlab(39.91, 54.33, 40.65)
CIE-LCHlch(39.91, 67.85, 36.81°)
OKLaboklab(50.29% 0.1545 0.0861)
OKLCHoklch(50.29% 0.177 29.1)
XYZxyz(19.5860, 11.1982, 2.3582)
Luminance0.1119 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B3281E #1EA9B3
analogous
#B31E5E #B3281E #B3721E
triadic
#B3281E #1EB328 #281EB3
tetradic
#B3281E #5EB31E #1EA9B3 #721EB3
square
#B3281E #5EB31E #1EA9B3 #721EB3
split-complementary
#B3281E #1EB372 #1E5EB3
monochromatic
#4A110C #7F1C15 #B3281E #DD3D32 #E56F66

Accessibility & contrast

On white

6.48
#B3281E on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.24
#B3281E on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3281E
6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B3281E#FFFFFF#000000##FFFFFF
##B3281E1.006.483.246.48
#FFFFFF6.481.0021.001.00
#0000003.2421.001.0021.00
##FFFFFF6.481.0021.001.00

Color blindness preview

Protanopia (red-blind)
#544B1B
Deuteranopia (green-blind)
#766916
Tritanopia (blue-blind)
#C60027
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #b3281e;
/* rgb */ color: rgb(179, 40, 30);
/* oklch */ color: oklch(50.3% 0.177 29.1);
Tailwind
colors: {
  custom: {
    50: '#d36e5c',
    500: '#b3281e',
    950: '#000000',
  },
}
SCSS
$custom: #b3281e;
$custom-light: #d36e5c;
$custom-dark: #000000;
JSON
{
  "hex": "#b3281e",
  "rgb": {
    "r": 179,
    "g": 40,
    "b": 30
  },
  "hsl": {
    "h": 4.027,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.50292,
    "c": 0.17686,
    "h": 29.1
  },
  "luminance": 0.11195
}

Semantic roles & 50–950 ramp

primary
#B3281E
secondary
#62C4CB
accent
#E2EE3A
background
#FEF7F5
surface
#FCEDE9
border
#D5C8C5
text
#160804
muted
#847B79

Preview Lab

Preview with #B3281E

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

Preview Lab → · Contrast checker → · Palette generator →

#B3281E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva