#B03B24#B03B24

#B03B24 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.157 H 33.1°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX#B03B24
RGBrgb(176, 59, 36)
HSLhsl(10, 66%, 42%)
HSVhsv(10, 80%, 69%)
CMYKcmyk(0%, 66.5%, 79.5%, 31%)
CIE-LABlab(41.98, 46.42, 39.31)
CIE-LCHlch(41.98, 60.83, 40.26°)
OKLaboklab(51.75% 0.1313 0.0856)
OKLCHoklch(51.75% 0.157 33.1)
XYZxyz(19.7891, 12.4883, 3.0372)
Luminance0.1249 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B03B24 #2499B0
analogous
#B02453 #B03B24 #B08124
triadic
#B03B24 #24B03B #3B24B0
tetradic
#B03B24 #53B024 #2499B0 #8124B0
square
#B03B24 #53B024 #2499B0 #8124B0
split-complementary
#B03B24 #24B081 #2453B0
monochromatic
#4A190F #7D2A1A #B03B24 #D7543A #E1806D

Accessibility & contrast

On white

6.01
#B03B24 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.50
#B03B24 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03B24
6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B03B24#FFFFFF#000000##FFFFFF
##B03B241.006.013.506.01
#FFFFFF6.011.0021.001.00
#0000003.5021.001.0021.00
##FFFFFF6.011.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5D5320
Deuteranopia (green-blind)
#7A6D1F
Tritanopia (blue-blind)
#C21837
Achromatopsia (no color)
#636363

Design tokens & code

CSS
--color: #b03b24;
/* rgb */ color: rgb(176, 59, 36);
/* oklch */ color: oklch(51.8% 0.157 33.1);
Tailwind
colors: {
  custom: {
    50: '#d07760',
    500: '#b03b24',
    950: '#000000',
  },
}
SCSS
$custom: #b03b24;
$custom-light: #d07760;
$custom-dark: #000000;
JSON
{
  "hex": "#b03b24",
  "rgb": {
    "r": 176,
    "g": 59,
    "b": 36
  },
  "hsl": {
    "h": 9.857,
    "s": 66.038,
    "l": 41.569
  },
  "oklch": {
    "l": 0.51753,
    "c": 0.15671,
    "h": 33.1
  },
  "luminance": 0.12485
}

Semantic roles & 50–950 ramp

primary
#B03B24
secondary
#68B8C8
accent
#CDE93F
background
#FDF7F5
surface
#FBEDEA
border
#D4C8C6
text
#150905
muted
#837B79

Preview Lab

Preview with #B03B24

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

Preview Lab → · Contrast checker → · Palette generator →

#B03B24 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva