#BB4137#BB4137

#BB4137 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.5% C 0.159 H 28.1°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#BB4137
RGB	rgb(187, 65, 55)
HSL	hsl(5, 55%, 47%)
HSV	hsv(5, 71%, 73%)
CMYK	cmyk(0%, 65.2%, 70.6%, 26.7%)
CIE-LAB	lab(45.12, 48.49, 32.71)
CIE-LCH	lch(45.12, 58.49, 34.00°)
OKLab	oklab(54.54% 0.1403 0.0751)
OKLCH	oklch(54.54% 0.159 28.1)
XYZ	xyz(23.0758, 14.6245, 5.2214)
Luminance	0.1462 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB4137 #37B1BB

analogous

#BB376F #BB4137 #BB8337

triadic

#BB4137 #37BB41 #4137BB

tetradic

#BB4137 #6FBB37 #37B1BB #8337BB

square

#BB4137 #6FBB37 #37B1BB #8337BB

split-complementary

#BB4137 #37BB83 #376FBB

monochromatic

#5C201B #8C3129 #BB4137 #D0685F #DE958E

Accessibility & contrast

On white

5.35

#BB4137 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#BB4137 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB4137

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB4137	#FFFFFF	#000000	##FFFFFF
##BB4137	1.00	5.35	3.92	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635A35

Deuteranopia (green-blind)

#817533

Tritanopia (blue-blind)

#CD2240

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #bb4137;
/* rgb */ color: rgb(187, 65, 55);
/* oklch */ color: oklch(54.5% 0.159 28.1);

Tailwind

colors: {
  custom: {
    50: '#d77c6e',
    500: '#bb4137',
    950: '#000000',
  },
}

SCSS

$custom: #bb4137;
$custom-light: #d77c6e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb4137",
  "rgb": {
    "r": 187,
    "g": 65,
    "b": 55
  },
  "hsl": {
    "h": 4.545,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54543,
    "c": 0.15914,
    "h": 28.1
  },
  "luminance": 0.14621
}

Semantic roles & 50–950 ramp

primary

#BB4137

secondary

#85C3C9

accent

#D3DE4A

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #BB4137

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

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