#B3241B#B3241B

#B3241B is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.9% C 0.180 H 29.0°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX#B3241B
RGBrgb(179, 36, 27)
HSLhsl(4, 74%, 40%)
HSVhsv(4, 85%, 70%)
CMYKcmyk(0%, 79.9%, 84.9%, 29.8%)
CIE-LABlab(39.46, 55.45, 41.78)
CIE-LCHlch(39.46, 69.43, 37.00°)
OKLaboklab(49.95% 0.1575 0.0874)
OKLCHoklch(49.95% 0.18 29)
XYZxyz(19.4215, 10.9278, 2.1234)
Luminance0.1092 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B3241B #1BAAB3
analogous
#B31B5E #B3241B #B3701B
triadic
#B3241B #1BB324 #241BB3
tetradic
#B3241B #5EB31B #1BAAB3 #701BB3
square
#B3241B #5EB31B #1BAAB3 #701BB3
split-complementary
#B3241B #1BB370 #1B5EB3
monochromatic
#490F0B #7E1913 #B3241B #DF372C #E76961

Accessibility & contrast

On white

6.59
#B3241B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.19
#B3241B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3241B
6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B3241B#FFFFFF#000000##FFFFFF
##B3241B1.006.593.196.59
#FFFFFF6.591.0021.001.00
#0000003.1921.001.0021.00
##FFFFFF6.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#524918
Deuteranopia (green-blind)
#756812
Tritanopia (blue-blind)
#C60024
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #b3241b;
/* rgb */ color: rgb(179, 36, 27);
/* oklch */ color: oklch(49.9% 0.180 29.0);
Tailwind
colors: {
  custom: {
    50: '#d46d5a',
    500: '#b3241b',
    950: '#000000',
  },
}
SCSS
$custom: #b3241b;
$custom-light: #d46d5a;
$custom-dark: #000000;
JSON
{
  "hex": "#b3241b",
  "rgb": {
    "r": 179,
    "g": 36,
    "b": 27
  },
  "hsl": {
    "h": 3.553,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49946,
    "c": 0.18009,
    "h": 29
  },
  "luminance": 0.10925
}

Semantic roles & 50–950 ramp

primary
#B3241B
secondary
#5EC5CC
accent
#E5F037
background
#FEF6F5
surface
#FDECE9
border
#D5C7C5
text
#160804
muted
#847A79

Preview Lab

Preview with #B3241B

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

Preview Lab → · Contrast checker → · Palette generator →

#B3241B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva