#B23321#B23321

#B23321 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.167 H 31.2°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX#B23321
RGBrgb(178, 51, 33)
HSLhsl(7, 69%, 41%)
HSVhsv(7, 81%, 70%)
CMYKcmyk(0%, 71.3%, 81.5%, 30.2%)
CIE-LABlab(41.13, 50.26, 40.17)
CIE-LCHlch(41.13, 64.34, 38.64°)
OKLaboklab(51.17% 0.1424 0.0863)
OKLCHoklch(51.17% 0.167 31.2)
XYZxyz(19.8208, 11.9455, 2.7006)
Luminance0.1194 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B23321 #21A0B2
analogous
#B22158 #B23321 #B27C21
triadic
#B23321 #21B233 #3321B2
tetradic
#B23321 #58B221 #21A0B2 #7C21B2
square
#B23321 #58B221 #21A0B2 #7C21B2
split-complementary
#B23321 #21B27C #2158B2
monochromatic
#4B150E #7E2417 #B23321 #DA4B36 #E3796A

Accessibility & contrast

On white

6.20
#B23321 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.39
#B23321 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23321
6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B23321#FFFFFF#000000##FFFFFF
##B233211.006.203.396.20
#FFFFFF6.201.0021.001.00
#0000003.3921.001.0021.00
##FFFFFF6.201.0021.001.00

Color blindness preview

Protanopia (red-blind)
#594F1E
Deuteranopia (green-blind)
#786B1B
Tritanopia (blue-blind)
#C40030
Achromatopsia (no color)
#616161

Design tokens & code

CSS
--color: #b23321;
/* rgb */ color: rgb(178, 51, 33);
/* oklch */ color: oklch(51.2% 0.167 31.2);
Tailwind
colors: {
  custom: {
    50: '#d2735e',
    500: '#b23321',
    950: '#000000',
  },
}
SCSS
$custom: #b23321;
$custom-light: #d2735e;
$custom-dark: #000000;
JSON
{
  "hex": "#b23321",
  "rgb": {
    "r": 178,
    "g": 51,
    "b": 33
  },
  "hsl": {
    "h": 7.448,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51173,
    "c": 0.16653,
    "h": 31.2
  },
  "luminance": 0.11942
}

Semantic roles & 50–950 ramp

primary
#B23321
secondary
#66BDC9
accent
#D6EC3C
background
#FEF7F5
surface
#FCEDE9
border
#D5C8C5
text
#160904
muted
#847B79

Preview Lab

Preview with #B23321

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

Preview Lab → · Contrast checker → · Palette generator →

#B23321 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva