#B13B28#B13B28

#B13B28 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.0% C 0.157 H 31.7°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX#B13B28
RGBrgb(177, 59, 40)
HSLhsl(8, 63%, 43%)
HSVhsv(8, 77%, 69%)
CMYKcmyk(0%, 66.7%, 77.4%, 30.6%)
CIE-LABlab(42.20, 46.92, 37.44)
CIE-LCHlch(42.20, 60.03, 38.59°)
OKLaboklab(51.97% 0.1335 0.0826)
OKLCHoklch(51.97% 0.157 31.7)
XYZxyz(20.0807, 12.6312, 3.3878)
Luminance0.1263 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B13B28 #289EB1
analogous
#B1285A #B13B28 #B17F28
triadic
#B13B28 #28B13B #3B28B1
tetradic
#B13B28 #5AB128 #289EB1 #7F28B1
square
#B13B28 #5AB128 #289EB1 #7F28B1
split-complementary
#B13B28 #28B17F #285AB1
monochromatic
#4D1A11 #7F2A1D #B13B28 #D45642 #E08374

Accessibility & contrast

On white

5.96
#B13B28 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.53
#B13B28 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13B28
5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B13B28#FFFFFF#000000##FFFFFF
##B13B281.005.963.535.96
#FFFFFF5.961.0021.001.00
#0000003.5321.001.0021.00
##FFFFFF5.961.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5D5325
Deuteranopia (green-blind)
#7A6D24
Tritanopia (blue-blind)
#C31837
Achromatopsia (no color)
#646464

Design tokens & code

CSS
--color: #b13b28;
/* rgb */ color: rgb(177, 59, 40);
/* oklch */ color: oklch(52.0% 0.157 31.7);
Tailwind
colors: {
  custom: {
    50: '#d07763',
    500: '#b13b28',
    950: '#000000',
  },
}
SCSS
$custom: #b13b28;
$custom-light: #d07763;
$custom-dark: #000000;
JSON
{
  "hex": "#b13b28",
  "rgb": {
    "r": 177,
    "g": 59,
    "b": 40
  },
  "hsl": {
    "h": 8.321,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.51965,
    "c": 0.15698,
    "h": 31.7
  },
  "luminance": 0.12628
}

Semantic roles & 50–950 ramp

primary
#B13B28
secondary
#6EBBC7
accent
#CFE642
background
#FDF7F5
surface
#FBEDEA
border
#D4C8C6
text
#150905
muted
#837B79

Preview Lab

Preview with #B13B28

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

Preview Lab → · Contrast checker → · Palette generator →

#B13B28 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva