#BB5137#BB5137

#BB5137 is a mid, vivid red. Relative luminance 0.167; OKLCH L 56.7% C 0.143 H 35.0°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#BB5137
RGB	rgb(187, 81, 55)
HSL	hsl(12, 55%, 47%)
HSV	hsv(12, 71%, 73%)
CMYK	cmyk(0%, 56.7%, 70.6%, 26.7%)
CIE-LAB	lab(47.92, 41.09, 35.95)
CIE-LCH	lch(47.92, 54.59, 41.18°)
OKLab	oklab(56.66% 0.1172 0.0821)
OKLCH	oklch(56.66% 0.143 35)
XYZ	xyz(24.1279, 16.7286, 5.5721)
Luminance	0.1673 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB5137 #37A1BB

analogous

#BB375F #BB5137 #BB9337

triadic

#BB5137 #37BB51 #5137BB

tetradic

#BB5137 #5FBB37 #37A1BB #9337BB

square

#BB5137 #5FBB37 #37A1BB #9337BB

split-complementary

#BB5137 #37BB93 #375FBB

monochromatic

#5C281B #8C3D29 #BB5137 #D0755F #DE9E8E

Accessibility & contrast

On white

4.83

#BB5137 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#BB5137 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB5137

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB5137	#FFFFFF	#000000	##FFFFFF
##BB5137	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6334

Deuteranopia (green-blind)

#887A34

Tritanopia (blue-blind)

#CD3B4B

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #bb5137;
/* rgb */ color: rgb(187, 81, 55);
/* oklch */ color: oklch(56.7% 0.143 35.0);

Tailwind

colors: {
  custom: {
    50: '#d6856f',
    500: '#bb5137',
    950: '#000000',
  },
}

SCSS

$custom: #bb5137;
$custom-light: #d6856f;
$custom-dark: #000000;

JSON

{
  "hex": "#bb5137",
  "rgb": {
    "r": 187,
    "g": 81,
    "b": 55
  },
  "hsl": {
    "h": 11.818,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56656,
    "c": 0.14314,
    "h": 35
  },
  "luminance": 0.16725
}

Semantic roles & 50–950 ramp

primary

#BB5137

secondary

#85BBC9

accent

#C1DE4A

background

#FEF8F6

surface

#FCEFEC

border

#D5CAC7

text

#160B07

muted

#847C7A

Preview Lab

Preview with #BB5137

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

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