#B1372D#B1372D

#B1372D is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.6% C 0.160 H 28.6°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX#B1372D
RGBrgb(177, 55, 45)
HSLhsl(5, 59%, 44%)
HSVhsv(5, 75%, 69%)
CMYKcmyk(0%, 68.9%, 74.6%, 30.6%)
CIE-LABlab(41.65, 48.79, 34.03)
CIE-LCHlch(41.65, 59.49, 34.90°)
OKLaboklab(51.57% 0.1404 0.0765)
OKLCHoklch(51.57% 0.16 28.6)
XYZxyz(19.9735, 12.2719, 3.7991)
Luminance0.1227 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1372D #2DA7B1
analogous
#B12D65 #B1372D #B1792D
triadic
#B1372D #2DB137 #372DB1
tetradic
#B1372D #65B12D #2DA7B1 #792DB1
square
#B1372D #65B12D #2DA7B1 #792DB1
split-complementary
#B1372D #2DB179 #2D65B1
monochromatic
#4F1914 #802821 #B1372D #D1544A #DD827B

Accessibility & contrast

On white

6.08
#B1372D on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.45
#B1372D on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1372D
6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1372D#FFFFFF#000000##FFFFFF
##B1372D1.006.083.456.08
#FFFFFF6.081.0021.001.00
#0000003.4521.001.0021.00
##FFFFFF6.081.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5A512B
Deuteranopia (green-blind)
#786C29
Tritanopia (blue-blind)
#C30F36
Achromatopsia (no color)
#626262

Design tokens & code

CSS
--color: #b1372d;
/* rgb */ color: rgb(177, 55, 45);
/* oklch */ color: oklch(51.6% 0.160 28.6);
Tailwind
colors: {
  custom: {
    50: '#d07566',
    500: '#b1372d',
    950: '#000000',
  },
}
SCSS
$custom: #b1372d;
$custom-light: #d07566;
$custom-dark: #000000;
JSON
{
  "hex": "#b1372d",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 45
  },
  "hsl": {
    "h": 4.545,
    "s": 59.459,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51565,
    "c": 0.15985,
    "h": 28.6
  },
  "luminance": 0.12269
}

Semantic roles & 50–950 ramp

primary
#B1372D
secondary
#74C0C6
accent
#D7E345
background
#FDF7F6
surface
#FBEDEB
border
#D4C8C6
text
#150906
muted
#837B7A

Preview Lab

Preview with #B1372D

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

Preview Lab → · Contrast checker → · Palette generator →

#B1372D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva