#BB4B37#BB4B37

#BB4B37 is a mid, vivid red. Relative luminance 0.159; OKLCH L 55.8% C 0.149 H 32.2°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#BB4B37
RGB	rgb(187, 75, 55)
HSL	hsl(9, 55%, 47%)
HSV	hsv(9, 71%, 73%)
CMYK	cmyk(0%, 59.9%, 70.6%, 26.7%)
CIE-LAB	lab(46.81, 43.98, 34.68)
CIE-LCH	lch(46.81, 56.00, 38.26°)
OKLab	oklab(55.82% 0.1262 0.0794)
OKLCH	oklch(55.82% 0.149 32.2)
XYZ	xyz(23.7016, 15.8760, 5.4300)
Luminance	0.1587 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB4B37 #37A7BB

analogous

#BB3765 #BB4B37 #BB8D37

triadic

#BB4B37 #37BB4B #4B37BB

tetradic

#BB4B37 #65BB37 #37A7BB #8D37BB

square

#BB4B37 #65BB37 #37A7BB #8D37BB

split-complementary

#BB4B37 #37BB8D #3765BB

monochromatic

#5C251B #8C3829 #BB4B37 #D0705F #DE9B8E

Accessibility & contrast

On white

5.03

#BB4B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#BB4B37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB4B37

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB4B37	#FFFFFF	#000000	##FFFFFF
##BB4B37	1.00	5.03	4.17	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696034

Deuteranopia (green-blind)

#857834

Tritanopia (blue-blind)

#CD3247

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #bb4b37;
/* rgb */ color: rgb(187, 75, 55);
/* oklch */ color: oklch(55.8% 0.149 32.2);

Tailwind

colors: {
  custom: {
    50: '#d6816e',
    500: '#bb4b37',
    950: '#000000',
  },
}

SCSS

$custom: #bb4b37;
$custom-light: #d6816e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb4b37",
  "rgb": {
    "r": 187,
    "g": 75,
    "b": 55
  },
  "hsl": {
    "h": 9.091,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.5582,
    "c": 0.14908,
    "h": 32.2
  },
  "luminance": 0.15873
}

Semantic roles & 50–950 ramp

primary

#BB4B37

secondary

#85BEC9

accent

#C7DE4A

background

#FEF8F6

surface

#FCEFEC

border

#D5CAC7

text

#160B07

muted

#847C7A

Preview Lab

Preview with #BB4B37

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

Preview Lab → · Contrast checker → · Palette generator →