#BB3A3B#BB3A3B

#BB3A3B is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.8% C 0.166 H 24.2°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#BB3A3B
RGB	rgb(187, 58, 59)
HSL	hsl(360, 53%, 48%)
HSV	hsv(360, 69%, 73%)
CMYK	cmyk(0%, 69%, 68.4%, 26.7%)
CIE-LAB	lab(44.10, 51.60, 29.16)
CIE-LCH	lch(44.10, 59.27, 29.47°)
OKLab	oklab(53.8% 0.1509 0.0679)
OKLCH	oklch(53.8% 0.166 24.2)
XYZ	xyz(22.7984, 13.9100, 5.6212)
Luminance	0.1391 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3A3B #3ABBBA

analogous

#BB3A7B #BB3A3B #BB793A

triadic

#BB3A3B #3BBB3A #3A3BBB

tetradic

#BB3A3B #7BBB3A #3ABBBA #793ABB

square

#BB3A3B #7BBB3A #3ABBBA #793ABB

split-complementary

#BB3A3B #3ABB79 #3A7BBB

monochromatic

#5E1D1E #8C2C2C #BB3A3B #CF6364 #DD9293

Accessibility & contrast

On white

5.55

#BB3A3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#BB3A3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3A3B

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3A3B	#FFFFFF	#000000	##FFFFFF
##BB3A3B	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)

#5E573A

Deuteranopia (green-blind)

#7E7237

Tritanopia (blue-blind)

#CD143C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bb3a3b;
/* rgb */ color: rgb(187, 58, 59);
/* oklch */ color: oklch(53.8% 0.166 24.2);

Tailwind

colors: {
  custom: {
    50: '#d77871',
    500: '#bb3a3b',
    950: '#000000',
  },
}

SCSS

$custom: #bb3a3b;
$custom-light: #d77871;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3a3b",
  "rgb": {
    "r": 187,
    "g": 58,
    "b": 59
  },
  "hsl": {
    "h": 359.535,
    "s": 52.653,
    "l": 48.039
  },
  "oklch": {
    "l": 0.53803,
    "c": 0.1655,
    "h": 24.2
  },
  "luminance": 0.13907
}

Semantic roles & 50–950 ramp

primary

#BB3A3B

secondary

#88C8C8

accent

#DCDB4C

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3A3B

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

Preview Lab → · Contrast checker → · Palette generator →