#BB3F3B#BB3F3B

#BB3F3B is a mid, vivid red. Relative luminance 0.144; OKLCH L 54.4% C 0.161 H 25.8°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#BB3F3B
RGB	rgb(187, 63, 59)
HSL	hsl(2, 52%, 48%)
HSV	hsv(2, 68%, 73%)
CMYK	cmyk(0%, 66.3%, 68.4%, 26.7%)
CIE-LAB	lab(44.86, 49.55, 30.07)
CIE-LCH	lch(44.86, 57.96, 31.25°)
OKLab	oklab(54.37% 0.1445 0.0699)
OKLCH	oklch(54.37% 0.161 25.8)
XYZ	xyz(23.0629, 14.4389, 5.7094)
Luminance	0.1444 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3F3B #3BB7BB

analogous

#BB3B77 #BB3F3B #BB7F3B

triadic

#BB3F3B #3BBB3F #3F3BBB

tetradic

#BB3F3B #77BB3B #3BB7BB #7F3BBB

square

#BB3F3B #77BB3B #3BB7BB #7F3BBB

split-complementary

#BB3F3B #3BBB7F #3B77BB

monochromatic

#5E201E #8C2F2C #BB3F3B #CE6865 #DD9693

Accessibility & contrast

On white

5.40

#BB3F3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#BB3F3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3F3B

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3F3B	#FFFFFF	#000000	##FFFFFF
##BB3F3B	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61593A

Deuteranopia (green-blind)

#807437

Tritanopia (blue-blind)

#CD1F3F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #bb3f3b;
/* rgb */ color: rgb(187, 63, 59);
/* oklch */ color: oklch(54.4% 0.161 25.8);

Tailwind

colors: {
  custom: {
    50: '#d77b71',
    500: '#bb3f3b',
    950: '#000000',
  },
}

SCSS

$custom: #bb3f3b;
$custom-light: #d77b71;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3f3b",
  "rgb": {
    "r": 187,
    "g": 63,
    "b": 59
  },
  "hsl": {
    "h": 1.875,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.54366,
    "c": 0.1605,
    "h": 25.8
  },
  "luminance": 0.14436
}

Semantic roles & 50–950 ramp

primary

#BB3F3B

secondary

#8AC6C8

accent

#D7DB4C

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #BB3F3B

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

Preview Lab → · Contrast checker → · Palette generator →