#BB3736#BB3736

#BB3736 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.169 H 25.3°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#BB3736
RGB	rgb(187, 55, 54)
HSL	hsl(0, 55%, 47%)
HSV	hsv(0, 71%, 73%)
CMYK	cmyk(0%, 70.6%, 71.1%, 26.7%)
CIE-LAB	lab(43.61, 52.51, 31.52)
CIE-LCH	lch(43.61, 61.25, 30.98°)
OKLab	oklab(53.41% 0.1528 0.0723)
OKLCH	oklch(53.41% 0.169 25.3)
XYZ	xyz(22.5280, 13.5669, 4.9218)
Luminance	0.1356 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3736 #36BABB

analogous

#BB3678 #BB3736 #BB7936

triadic

#BB3736 #36BB37 #3736BB

tetradic

#BB3736 #78BB36 #36BABB #7936BB

square

#BB3736 #78BB36 #36BABB #7936BB

split-complementary

#BB3736 #36BB79 #3678BB

monochromatic

#5C1B1B #8C2928 #BB3736 #D05F5E #DE8E8D

Accessibility & contrast

On white

5.66

#BB3736 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#BB3736 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3736

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3736	#FFFFFF	#000000	##FFFFFF
##BB3736	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5535

Deuteranopia (green-blind)

#7E7132

Tritanopia (blue-blind)

#CE0738

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bb3736;
/* rgb */ color: rgb(187, 55, 54);
/* oklch */ color: oklch(53.4% 0.169 25.3);

Tailwind

colors: {
  custom: {
    50: '#d7776d',
    500: '#bb3736',
    950: '#000000',
  },
}

SCSS

$custom: #bb3736;
$custom-light: #d7776d;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3736",
  "rgb": {
    "r": 187,
    "g": 55,
    "b": 54
  },
  "hsl": {
    "h": 0.451,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53408,
    "c": 0.16902,
    "h": 25.3
  },
  "luminance": 0.13564
}

Semantic roles & 50–950 ramp

primary

#BB3736

secondary

#84C8C9

accent

#DDDF49

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3736

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

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