#BB3C21#BB3C21

#BB3C21 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.7% C 0.168 H 33.6°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX#BB3C21
RGBrgb(187, 60, 33)
HSLhsl(11, 70%, 43%)
HSVhsv(11, 82%, 73%)
CMYKcmyk(0%, 67.9%, 82.4%, 26.7%)
CIE-LABlab(44.10, 49.72, 43.59)
CIE-LCHlch(44.10, 66.12, 41.25°)
OKLaboklab(53.71% 0.1399 0.093)
OKLCHoklch(53.71% 0.168 33.6)
XYZxyz(22.3865, 13.9097, 2.9446)
Luminance0.1391 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#BB3C21 #21A0BB
analogous
#BB2153 #BB3C21 #BB8921
triadic
#BB3C21 #21BB3C #3C21BB
tetradic
#BB3C21 #53BB21 #21A0BB #8921BB
square
#BB3C21 #53BB21 #21A0BB #8921BB
split-complementary
#BB3C21 #21BB89 #2153BB
monochromatic
#531B0F #872B18 #BB3C21 #DD593D #E68571

Accessibility & contrast

On white

5.55
#BB3C21 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.78
#BB3C21 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3C21
5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##BB3C21#FFFFFF#000000##FFFFFF
##BB3C211.005.553.785.55
#FFFFFF5.551.0021.001.00
#0000003.7821.001.0021.00
##FFFFFF5.551.0021.001.00

Color blindness preview

Protanopia (red-blind)
#61561C
Deuteranopia (green-blind)
#81731B
Tritanopia (blue-blind)
#CE1037
Achromatopsia (no color)
#686868

Design tokens & code

CSS
--color: #bb3c21;
/* rgb */ color: rgb(187, 60, 33);
/* oklch */ color: oklch(53.7% 0.168 33.6);
Tailwind
colors: {
  custom: {
    50: '#d8795f',
    500: '#bb3c21',
    950: '#000000',
  },
}
SCSS
$custom: #bb3c21;
$custom-light: #d8795f;
$custom-dark: #000000;
JSON
{
  "hex": "#bb3c21",
  "rgb": {
    "r": 187,
    "g": 60,
    "b": 33
  },
  "hsl": {
    "h": 10.519,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.53708,
    "c": 0.16794,
    "h": 33.6
  },
  "luminance": 0.13906
}

Semantic roles & 50–950 ramp

primary
#BB3C21
secondary
#6BBBCC
accent
#CEED3B
background
#FEF7F5
surface
#FDEEE9
border
#D5C9C5
text
#160905
muted
#847B79

Preview Lab

Preview with #BB3C21

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

Preview Lab → · Contrast checker → · Palette generator →

#BB3C21 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva