#BB3B33#BB3B33

#BB3B33 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.8% C 0.166 H 27.6°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#BB3B33
RGB	rgb(187, 59, 51)
HSL	hsl(4, 57%, 47%)
HSV	hsv(4, 73%, 73%)
CMYK	cmyk(0%, 68.4%, 72.7%, 26.7%)
CIE-LAB	lab(44.14, 50.80, 33.89)
CIE-LCH	lch(44.14, 61.07, 33.71°)
OKLab	oklab(53.8% 0.1468 0.0769)
OKLCH	oklch(53.8% 0.166 27.6)
XYZ	xyz(22.6575, 13.9351, 4.6280)
Luminance	0.1393 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3B33 #33B3BB

analogous

#BB336F #BB3B33 #BB7F33

triadic

#BB3B33 #33BB3B #3B33BB

tetradic

#BB3B33 #6FBB33 #33B3BB #7F33BB

square

#BB3B33 #6FBB33 #33B3BB #7F33BB

split-complementary

#BB3B33 #33BB7F #336FBB

monochromatic

#5B1D19 #8B2C26 #BB3B33 #D26059 #DF8E89

Accessibility & contrast

On white

5.55

#BB3B33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#BB3B33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3B33

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3B33	#FFFFFF	#000000	##FFFFFF
##BB3B33	1.00	5.55	3.79	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5731

Deuteranopia (green-blind)

#7F732F

Tritanopia (blue-blind)

#CE133A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bb3b33;
/* rgb */ color: rgb(187, 59, 51);
/* oklch */ color: oklch(53.8% 0.166 27.6);

Tailwind

colors: {
  custom: {
    50: '#d7786b',
    500: '#bb3b33',
    950: '#000000',
  },
}

SCSS

$custom: #bb3b33;
$custom-light: #d7786b;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3b33",
  "rgb": {
    "r": 187,
    "g": 59,
    "b": 51
  },
  "hsl": {
    "h": 3.529,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.53795,
    "c": 0.16566,
    "h": 27.6
  },
  "luminance": 0.13932
}

Semantic roles & 50–950 ramp

primary

#BB3B33

secondary

#81C5C9

accent

#D7E047

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3B33

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

Preview Lab → · Contrast checker → · Palette generator →