#BB3133#BB3133

#BB3133 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.8% C 0.175 H 24.8°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#BB3133
RGB	rgb(187, 49, 51)
HSL	hsl(359, 58%, 46%)
HSV	hsv(359, 74%, 73%)
CMYK	cmyk(0%, 73.8%, 72.7%, 26.7%)
CIE-LAB	lab(42.77, 54.57, 32.32)
CIE-LCH	lch(42.77, 63.42, 30.63°)
OKLab	oklab(52.77% 0.1586 0.0734)
OKLCH	oklch(52.77% 0.175 24.8)
XYZ	xyz(22.1919, 13.0038, 4.4728)
Luminance	0.1300 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3133 #31BBB9

analogous

#BB3178 #BB3133 #BB7431

triadic

#BB3133 #33BB31 #3133BB

tetradic

#BB3133 #78BB31 #31BBB9 #7431BB

square

#BB3133 #78BB31 #31BBB9 #7431BB

split-complementary

#BB3133 #31BB74 #3178BB

monochromatic

#5A1819 #8B2426 #BB3133 #D35658 #E08788

Accessibility & contrast

On white

5.83

#BB3133 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#BB3133 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3133

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3133	#FFFFFF	#000000	##FFFFFF
##BB3133	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5232

Deuteranopia (green-blind)

#7C702E

Tritanopia (blue-blind)

#CE0033

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #bb3133;
/* rgb */ color: rgb(187, 49, 51);
/* oklch */ color: oklch(52.8% 0.175 24.8);

Tailwind

colors: {
  custom: {
    50: '#d8746b',
    500: '#bb3133',
    950: '#000000',
  },
}

SCSS

$custom: #bb3133;
$custom-light: #d8746b;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3133",
  "rgb": {
    "r": 187,
    "g": 49,
    "b": 51
  },
  "hsl": {
    "h": 359.13,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52771,
    "c": 0.17481,
    "h": 24.8
  },
  "luminance": 0.13
}

Semantic roles & 50–950 ramp

primary

#BB3133

secondary

#7FC9C8

accent

#E2DF46

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3133

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

Preview Lab → · Contrast checker → · Palette generator →