#BB3B3B#BB3B3B

#BB3B3B is a mid, vivid red. Relative luminance 0.140; OKLCH L 53.9% C 0.165 H 24.5°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#BB3B3B
RGB	rgb(187, 59, 59)
HSL	hsl(0, 52%, 48%)
HSV	hsv(0, 68%, 73%)
CMYK	cmyk(0%, 68.4%, 68.4%, 26.7%)
CIE-LAB	lab(44.25, 51.20, 29.33)
CIE-LCH	lch(44.25, 59.01, 29.81°)
OKLab	oklab(53.91% 0.1497 0.0683)
OKLCH	oklch(53.91% 0.165 24.5)
XYZ	xyz(22.8493, 14.0118, 5.6382)
Luminance	0.1401 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3B3B #3BBBBB

analogous

#BB3B7B #BB3B3B #BB7B3B

triadic

#BB3B3B #3BBB3B #3B3BBB

tetradic

#BB3B3B #7BBB3B #3BBBBB #7B3BBB

square

#BB3B3B #7BBB3B #3BBBBB #7B3BBB

split-complementary

#BB3B3B #3BBB7B #3B7BBB

monochromatic

#5E1E1E #8C2C2C #BB3B3B #CE6565 #DD9393

Accessibility & contrast

On white

5.52

#BB3B3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#BB3B3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3B3B

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3B3B	#FFFFFF	#000000	##FFFFFF
##BB3B3B	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E573A

Deuteranopia (green-blind)

#7E7337

Tritanopia (blue-blind)

#CD163C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #bb3b3b;
/* rgb */ color: rgb(187, 59, 59);
/* oklch */ color: oklch(53.9% 0.165 24.5);

Tailwind

colors: {
  custom: {
    50: '#d77971',
    500: '#bb3b3b',
    950: '#000000',
  },
}

SCSS

$custom: #bb3b3b;
$custom-light: #d77971;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3b3b",
  "rgb": {
    "r": 187,
    "g": 59,
    "b": 59
  },
  "hsl": {
    "h": 0,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.53912,
    "c": 0.16452,
    "h": 24.5
  },
  "luminance": 0.14008
}

Semantic roles & 50–950 ramp

primary

#BB3B3B

secondary

#8AC8C8

accent

#DBDB4C

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3B3B

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

Preview Lab → · Contrast checker → · Palette generator →