#B13D37#B13D37

#B13D37 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.4% C 0.152 H 26.7°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX#B13D37
RGBrgb(177, 61, 55)
HSLhsl(3, 53%, 45%)
HSVhsv(3, 69%, 69%)
CMYKcmyk(0%, 65.5%, 68.9%, 30.6%)
CIE-LABlab(42.71, 46.76, 29.43)
CIE-LCHlch(42.71, 55.25, 32.18°)
OKLaboklab(52.41% 0.1361 0.0683)
OKLCHoklch(52.41% 0.152 26.7)
XYZxyz(20.4919, 12.9633, 5.0368)
Luminance0.1296 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B13D37 #37ABB1
analogous
#B1376E #B13D37 #B17A37
triadic
#B13D37 #37B13D #3D37B1
tetradic
#B13D37 #6EB137 #37ABB1 #7A37B1
square
#B13D37 #6EB137 #37ABB1 #7A37B1
split-complementary
#B13D37 #37B17A #376EB1
monochromatic
#541D1A #822D28 #B13D37 #CC5F5A #DA8C88

Accessibility & contrast

On white

5.85
#B13D37 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.59
#B13D37 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13D37
5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B13D37#FFFFFF#000000##FFFFFF
##B13D371.005.853.595.85
#FFFFFF5.851.0021.001.00
#0000003.5921.001.0021.00
##FFFFFF5.851.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5D5535
Deuteranopia (green-blind)
#7A6E34
Tritanopia (blue-blind)
#C2203D
Achromatopsia (no color)
#656565

Design tokens & code

CSS
--color: #b13d37;
/* rgb */ color: rgb(177, 61, 55);
/* oklch */ color: oklch(52.4% 0.152 26.7);
Tailwind
colors: {
  custom: {
    50: '#cf796e',
    500: '#b13d37',
    950: '#000000',
  },
}
SCSS
$custom: #b13d37;
$custom-light: #cf796e;
$custom-dark: #000000;
JSON
{
  "hex": "#b13d37",
  "rgb": {
    "r": 177,
    "g": 61,
    "b": 55
  },
  "hsl": {
    "h": 2.951,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52405,
    "c": 0.15225,
    "h": 26.7
  },
  "luminance": 0.1296
}

Semantic roles & 50–950 ramp

primary
#B13D37
secondary
#80C1C4
accent
#D5DC4C
background
#FDF7F6
surface
#FBEEEB
border
#D4C9C6
text
#150907
muted
#837B7A

Preview Lab

Preview with #B13D37

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

Preview Lab → · Contrast checker → · Palette generator →

#B13D37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva