#BB3331#BB3331

#BB3331 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.9% C 0.173 H 26.1°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#BB3331
RGB	rgb(187, 51, 49)
HSL	hsl(1, 58%, 46%)
HSV	hsv(1, 74%, 73%)
CMYK	cmyk(0%, 72.7%, 73.8%, 26.7%)
CIE-LAB	lab(43.00, 53.77, 33.75)
CIE-LCH	lch(43.00, 63.49, 32.12°)
OKLab	oklab(52.94% 0.1557 0.0761)
OKLCH	oklch(52.94% 0.173 26.1)
XYZ	xyz(22.2343, 13.1576, 4.2741)
Luminance	0.1315 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3331 #31B9BB

analogous

#BB3174 #BB3331 #BB7831

triadic

#BB3331 #31BB33 #3331BB

tetradic

#BB3331 #74BB31 #31B9BB #7831BB

square

#BB3331 #74BB31 #31B9BB #7831BB

split-complementary

#BB3331 #31BB78 #3174BB

monochromatic

#5A1918 #8B2624 #BB3331 #D35856 #E08887

Accessibility & contrast

On white

5.78

#BB3331 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#BB3331 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3331

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3331	#FFFFFF	#000000	##FFFFFF
##BB3331	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B532F

Deuteranopia (green-blind)

#7D702C

Tritanopia (blue-blind)

#CE0034

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #bb3331;
/* rgb */ color: rgb(187, 51, 49);
/* oklch */ color: oklch(52.9% 0.173 26.1);

Tailwind

colors: {
  custom: {
    50: '#d87569',
    500: '#bb3331',
    950: '#000000',
  },
}

SCSS

$custom: #bb3331;
$custom-light: #d87569;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3331",
  "rgb": {
    "r": 187,
    "g": 51,
    "b": 49
  },
  "hsl": {
    "h": 0.87,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52935,
    "c": 0.17331,
    "h": 26.1
  },
  "luminance": 0.13154
}

Semantic roles & 50–950 ramp

primary

#BB3331

secondary

#7FC8C9

accent

#DFE246

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3331

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

Preview Lab → · Contrast checker → · Palette generator →