#BB4737#BB4737

#BB4737 is a mid, vivid red. Relative luminance 0.153; OKLCH L 55.3% C 0.153 H 30.5°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#BB4737
RGB	rgb(187, 71, 55)
HSL	hsl(7, 55%, 47%)
HSV	hsv(7, 71%, 73%)
CMYK	cmyk(0%, 62%, 70.6%, 26.7%)
CIE-LAB	lab(46.11, 45.83, 33.87)
CIE-LCH	lch(46.11, 56.99, 36.46°)
OKLab	oklab(55.29% 0.132 0.0776)
OKLCH	oklch(55.29% 0.153 30.5)
XYZ	xyz(23.4388, 15.3503, 5.3424)
Luminance	0.1535 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB4737 #37ABBB

analogous

#BB3769 #BB4737 #BB8937

triadic

#BB4737 #37BB47 #4737BB

tetradic

#BB4737 #69BB37 #37ABBB #8937BB

square

#BB4737 #69BB37 #37ABBB #8937BB

split-complementary

#BB4737 #37BB89 #3769BB

monochromatic

#5C231B #8C3529 #BB4737 #D06D5F #DE988E

Accessibility & contrast

On white

5.16

#BB4737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#BB4737 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB4737

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB4737	#FFFFFF	#000000	##FFFFFF
##BB4737	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665D35

Deuteranopia (green-blind)

#837734

Tritanopia (blue-blind)

#CD2C44

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #bb4737;
/* rgb */ color: rgb(187, 71, 55);
/* oklch */ color: oklch(55.3% 0.153 30.5);

Tailwind

colors: {
  custom: {
    50: '#d77f6e',
    500: '#bb4737',
    950: '#000000',
  },
}

SCSS

$custom: #bb4737;
$custom-light: #d77f6e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb4737",
  "rgb": {
    "r": 187,
    "g": 71,
    "b": 55
  },
  "hsl": {
    "h": 7.273,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.55291,
    "c": 0.1531,
    "h": 30.5
  },
  "luminance": 0.15347
}

Semantic roles & 50–950 ramp

primary

#BB4737

secondary

#85C0C9

accent

#CCDE4A

background

#FEF8F6

surface

#FCEFEC

border

#D5CAC7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #BB4737

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

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