#BB3751#BB3751

#BB3751 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.9% C 0.168 H 13.5°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#BB3751
RGB	rgb(187, 55, 81)
HSL	hsl(348, 55%, 47%)
HSV	hsv(348, 71%, 73%)
CMYK	cmyk(0%, 70.6%, 56.7%, 26.7%)
CIE-LAB	lab(44.08, 54.17, 15.71)
CIE-LCH	lch(44.08, 56.40, 16.18°)
OKLab	oklab(53.92% 0.1632 0.0392)
OKLCH	oklch(53.92% 0.168 13.5)
XYZ	xyz(23.3471, 13.8945, 9.2355)
Luminance	0.1389 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3751 #37BBA1

analogous

#BB3793 #BB3751 #BB5F37

triadic

#BB3751 #51BB37 #3751BB

tetradic

#BB3751 #93BB37 #37BBA1 #5F37BB

square

#BB3751 #93BB37 #37BBA1 #5F37BB

split-complementary

#BB3751 #37BB5F #3793BB

monochromatic

#5C1B28 #8C293D #BB3751 #D05F75 #DE8E9E

Accessibility & contrast

On white

5.56

#BB3751 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#BB3751 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3751

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3751	#FFFFFF	#000000	##FFFFFF
##BB3751	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595751

Deuteranopia (green-blind)

#7B724E

Tritanopia (blue-blind)

#CC1742

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bb3751;
/* rgb */ color: rgb(187, 55, 81);
/* oklch */ color: oklch(53.9% 0.168 13.5);

Tailwind

colors: {
  custom: {
    50: '#d67781',
    500: '#bb3751',
    950: '#000000',
  },
}

SCSS

$custom: #bb3751;
$custom-light: #d67781;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3751",
  "rgb": {
    "r": 187,
    "g": 55,
    "b": 81
  },
  "hsl": {
    "h": 348.182,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53916,
    "c": 0.16787,
    "h": 13.5
  },
  "luminance": 0.13891
}

Semantic roles & 50–950 ramp

primary

#BB3751

secondary

#85C9BB

accent

#DEC14A

background

#FEF7F7

surface

#FCEEEE

border

#D5C9C9

text

#16090A

muted

#847B7C

Preview Lab

Preview with #BB3751

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

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