#B13733#B13733

#B13733 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.6% C 0.159 H 26.2°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX#B13733
RGBrgb(177, 55, 51)
HSLhsl(2, 55%, 45%)
HSVhsv(2, 71%, 69%)
CMYKcmyk(0%, 68.9%, 71.2%, 30.6%)
CIE-LABlab(41.72, 49.07, 30.62)
CIE-LCHlch(41.72, 57.84, 31.97°)
OKLaboklab(51.65% 0.1425 0.0703)
OKLCHoklch(51.65% 0.159 26.2)
XYZxyz(20.0974, 12.3214, 4.4514)
Luminance0.1232 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B13733 #33ADB1
analogous
#B1336E #B13733 #B17633
triadic
#B13733 #33B137 #3733B1
tetradic
#B13733 #6EB133 #33ADB1 #7633B1
square
#B13733 #6EB133 #33ADB1 #7633B1
split-complementary
#B13733 #33B176 #336EB1
monochromatic
#521918 #812825 #B13733 #CE5754 #DB8683

Accessibility & contrast

On white

6.06
#B13733 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.46
#B13733 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13733
6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B13733#FFFFFF#000000##FFFFFF
##B137331.006.063.466.06
#FFFFFF6.061.0021.001.00
#0000003.4621.001.0021.00
##FFFFFF6.061.0021.001.00

Color blindness preview

Protanopia (red-blind)
#595231
Deuteranopia (green-blind)
#786C2F
Tritanopia (blue-blind)
#C31237
Achromatopsia (no color)
#626262

Design tokens & code

CSS
--color: #b13733;
/* rgb */ color: rgb(177, 55, 51);
/* oklch */ color: oklch(51.6% 0.159 26.2);
Tailwind
colors: {
  custom: {
    50: '#d0756b',
    500: '#b13733',
    950: '#000000',
  },
}
SCSS
$custom: #b13733;
$custom-light: #d0756b;
$custom-dark: #000000;
JSON
{
  "hex": "#b13733",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 1.905,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51648,
    "c": 0.1589,
    "h": 26.2
  },
  "luminance": 0.12319
}

Semantic roles & 50–950 ramp

primary
#B13733
secondary
#7BC2C5
accent
#DADF49
background
#FDF7F6
surface
#FBEDEB
border
#D4C8C6
text
#150906
muted
#837B7A

Preview Lab

Preview with #B13733

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

Preview Lab → · Contrast checker → · Palette generator →

#B13733 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva