#B23921#B23921

#B23921 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.161 H 33.1°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX#B23921
RGBrgb(178, 57, 33)
HSLhsl(10, 69%, 41%)
HSVhsv(10, 81%, 70%)
CMYKcmyk(0%, 68%, 81.5%, 30.2%)
CIE-LABlab(42.01, 47.86, 41.02)
CIE-LCHlch(42.01, 63.04, 40.60°)
OKLaboklab(51.83% 0.135 0.0881)
OKLCHoklch(51.83% 0.161 33.1)
XYZxyz(20.1001, 12.5040, 2.7937)
Luminance0.1250 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B23921 #219AB2
analogous
#B22152 #B23921 #B28221
triadic
#B23921 #21B239 #3921B2
tetradic
#B23921 #52B221 #219AB2 #8221B2
square
#B23921 #52B221 #219AB2 #8221B2
split-complementary
#B23921 #21B282 #2152B2
monochromatic
#4B180E #7E2817 #B23921 #DA5136 #E37E6A

Accessibility & contrast

On white

6.00
#B23921 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.50
#B23921 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23921
6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B23921#FFFFFF#000000##FFFFFF
##B239211.006.003.506.00
#FFFFFF6.001.0021.001.00
#0000003.5021.001.0021.00
##FFFFFF6.001.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5C521D
Deuteranopia (green-blind)
#7A6D1B
Tritanopia (blue-blind)
#C41135
Achromatopsia (no color)
#636363

Design tokens & code

CSS
--color: #b23921;
/* rgb */ color: rgb(178, 57, 33);
/* oklch */ color: oklch(51.8% 0.161 33.1);
Tailwind
colors: {
  custom: {
    50: '#d2765e',
    500: '#b23921',
    950: '#000000',
  },
}
SCSS
$custom: #b23921;
$custom-light: #d2765e;
$custom-dark: #000000;
JSON
{
  "hex": "#b23921",
  "rgb": {
    "r": 178,
    "g": 57,
    "b": 33
  },
  "hsl": {
    "h": 9.931,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51831,
    "c": 0.16123,
    "h": 33.1
  },
  "luminance": 0.12501
}

Semantic roles & 50–950 ramp

primary
#B23921
secondary
#66B9C9
accent
#CFEC3C
background
#FEF7F5
surface
#FCEDE9
border
#D5C8C5
text
#160904
muted
#847B79

Preview Lab

Preview with #B23921

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

Preview Lab → · Contrast checker → · Palette generator →

#B23921 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva