#BB374B#BB374B

#BB374B is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.8% C 0.168 H 16.3°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#BB374B
RGB	rgb(187, 55, 75)
HSL	hsl(351, 55%, 47%)
HSV	hsv(351, 71%, 73%)
CMYK	cmyk(0%, 70.6%, 59.9%, 26.7%)
CIE-LAB	lab(43.96, 53.74, 19.25)
CIE-LCH	lch(43.96, 57.08, 19.71°)
OKLab	oklab(53.78% 0.1609 0.0471)
OKLCH	oklch(53.78% 0.168 16.3)
XYZ	xyz(23.1320, 13.8084, 8.1025)
Luminance	0.1381 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB374B #37BBA7

analogous

#BB378D #BB374B #BB6537

triadic

#BB374B #4BBB37 #374BBB

tetradic

#BB374B #8DBB37 #37BBA7 #6537BB

square

#BB374B #8DBB37 #37BBA7 #6537BB

split-complementary

#BB374B #37BB65 #378DBB

monochromatic

#5C1B25 #8C2938 #BB374B #D05F70 #DE8E9B

Accessibility & contrast

On white

5.58

#BB374B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#BB374B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB374B

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB374B	#FFFFFF	#000000	##FFFFFF
##BB374B	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A564B

Deuteranopia (green-blind)

#7B7248

Tritanopia (blue-blind)

#CD143F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bb374b;
/* rgb */ color: rgb(187, 55, 75);
/* oklch */ color: oklch(53.8% 0.168 16.3);

Tailwind

colors: {
  custom: {
    50: '#d6777d',
    500: '#bb374b',
    950: '#000000',
  },
}

SCSS

$custom: #bb374b;
$custom-light: #d6777d;
$custom-dark: #000000;

JSON

{
  "hex": "#bb374b",
  "rgb": {
    "r": 187,
    "g": 55,
    "b": 75
  },
  "hsl": {
    "h": 350.909,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53783,
    "c": 0.16763,
    "h": 16.3
  },
  "luminance": 0.13805
}

Semantic roles & 50–950 ramp

primary

#BB374B

secondary

#85C9BE

accent

#DEC74A

background

#FEF7F7

surface

#FCEEEE

border

#D5C9C9

text

#160909

muted

#847B7B

Preview Lab

Preview with #BB374B

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

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