#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
RGB	rgb(187, 60, 33)
HSL	hsl(11, 70%, 43%)
HSV	hsv(11, 82%, 73%)
CMYK	cmyk(0%, 67.9%, 82.4%, 26.7%)
CIE-LAB	lab(44.10, 49.72, 43.59)
CIE-LCH	lch(44.10, 66.12, 41.25°)
OKLab	oklab(53.71% 0.1399 0.093)
OKLCH	oklch(53.71% 0.168 33.6)
XYZ	xyz(22.3865, 13.9097, 2.9446)
Luminance	0.1391 (WCAG relative)
Temperature	warm
Family	red

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
##BB3C21	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

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 →