#B4372A#B4372A

#B4372A is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.164 H 29.6°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX#B4372A
RGBrgb(180, 55, 42)
HSLhsl(6, 62%, 44%)
HSVhsv(6, 77%, 71%)
CMYKcmyk(0%, 69.4%, 76.7%, 29.4%)
CIE-LABlab(42.16, 49.68, 36.46)
CIE-LCHlch(42.16, 61.62, 36.28°)
OKLaboklab(52.04% 0.1422 0.0808)
OKLCHoklch(52.04% 0.164 29.6)
XYZxyz(20.6088, 12.6059, 3.5381)
Luminance0.1260 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B4372A #2AA7B4
analogous
#B42A62 #B4372A #B47C2A
triadic
#B4372A #2AB437 #372AB4
tetradic
#B4372A #62B42A #2AA7B4 #7C2AB4
square
#B4372A #62B42A #2AA7B4 #7C2AB4
split-complementary
#B4372A #2AB47C #2A62B4
monochromatic
#511913 #82281E #B4372A #D45447 #E08279

Accessibility & contrast

On white

5.96
#B4372A on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.52
#B4372A on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4372A
5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B4372A#FFFFFF#000000##FFFFFF
##B4372A1.005.963.525.96
#FFFFFF5.961.0021.001.00
#0000003.5221.001.0021.00
##FFFFFF5.961.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5B5227
Deuteranopia (green-blind)
#7A6E25
Tritanopia (blue-blind)
#C60B35
Achromatopsia (no color)
#636363

Design tokens & code

CSS
--color: #b4372a;
/* rgb */ color: rgb(180, 55, 42);
/* oklch */ color: oklch(52.0% 0.164 29.6);
Tailwind
colors: {
  custom: {
    50: '#d37564',
    500: '#b4372a',
    950: '#000000',
  },
}
SCSS
$custom: #b4372a;
$custom-light: #d37564;
$custom-dark: #000000;
JSON
{
  "hex": "#b4372a",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 42
  },
  "hsl": {
    "h": 5.652,
    "s": 62.162,
    "l": 43.529
  },
  "oklch": {
    "l": 0.52044,
    "c": 0.16353,
    "h": 29.6
  },
  "luminance": 0.12603
}

Semantic roles & 50–950 ramp

primary
#B4372A
secondary
#72C0C8
accent
#D6E543
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160905
muted
#847B7A

Preview Lab

Preview with #B4372A

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

Preview Lab → · Contrast checker → · Palette generator →

#B4372A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva