#BB3B31#BB3B31

#BB3B31 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.8% C 0.166 H 28.4°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#BB3B31
RGB	rgb(187, 59, 49)
HSL	hsl(4, 58%, 46%)
HSV	hsv(4, 74%, 73%)
CMYK	cmyk(0%, 68.4%, 73.8%, 26.7%)
CIE-LAB	lab(44.11, 50.71, 35.01)
CIE-LCH	lch(44.11, 61.62, 34.62°)
OKLab	oklab(53.77% 0.1461 0.0789)
OKLCH	oklch(53.77% 0.166 28.4)
XYZ	xyz(22.6144, 13.9178, 4.4008)
Luminance	0.1391 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3B31 #31B1BB

analogous

#BB316C #BB3B31 #BB8031

triadic

#BB3B31 #31BB3B #3B31BB

tetradic

#BB3B31 #6CBB31 #31B1BB #8031BB

square

#BB3B31 #6CBB31 #31B1BB #8031BB

split-complementary

#BB3B31 #31BB80 #316CBB

monochromatic

#5A1C18 #8B2C24 #BB3B31 #D35F56 #E08D87

Accessibility & contrast

On white

5.55

#BB3B31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#BB3B31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3B31

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3B31	#FFFFFF	#000000	##FFFFFF
##BB3B31	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)

#5F572F

Deuteranopia (green-blind)

#7F732D

Tritanopia (blue-blind)

#CE123A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bb3b31;
/* rgb */ color: rgb(187, 59, 49);
/* oklch */ color: oklch(53.8% 0.166 28.4);

Tailwind

colors: {
  custom: {
    50: '#d8786a',
    500: '#bb3b31',
    950: '#000000',
  },
}

SCSS

$custom: #bb3b31;
$custom-light: #d8786a;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3b31",
  "rgb": {
    "r": 187,
    "g": 59,
    "b": 49
  },
  "hsl": {
    "h": 4.348,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53768,
    "c": 0.16599,
    "h": 28.4
  },
  "luminance": 0.13914
}

Semantic roles & 50–950 ramp

primary

#BB3B31

secondary

#7FC4C9

accent

#D6E246

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3B31

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

Preview Lab → · Contrast checker → · Palette generator →