#BB3838#BB3838

#BB3838 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.5% C 0.168 H 24.8°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#BB3838
RGB	rgb(187, 56, 56)
HSL	hsl(0, 54%, 48%)
HSV	hsv(0, 70%, 73%)
CMYK	cmyk(0%, 70.1%, 70.1%, 26.7%)
CIE-LAB	lab(43.77, 52.23, 30.54)
CIE-LCH	lch(43.77, 60.50, 30.32°)
OKLab	oklab(53.54% 0.1523 0.0705)
OKLCH	oklch(53.54% 0.168 24.8)
XYZ	xyz(22.6240, 13.6820, 5.1902)
Luminance	0.1368 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3838 #38BBBB

analogous

#BB3879 #BB3838 #BB7938

triadic

#BB3838 #38BB38 #3838BB

tetradic

#BB3838 #79BB38 #38BBBB #7938BB

square

#BB3838 #79BB38 #38BBBB #7938BB

split-complementary

#BB3838 #38BB79 #3879BB

monochromatic

#5D1C1C #8C2A2A #BB3838 #D06161 #DE9090

Accessibility & contrast

On white

5.62

#BB3838 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#BB3838 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3838

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3838	#FFFFFF	#000000	##FFFFFF
##BB3838	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5537

Deuteranopia (green-blind)

#7E7234

Tritanopia (blue-blind)

#CD0C3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bb3838;
/* rgb */ color: rgb(187, 56, 56);
/* oklch */ color: oklch(53.5% 0.168 24.8);

Tailwind

colors: {
  custom: {
    50: '#d7776f',
    500: '#bb3838',
    950: '#000000',
  },
}

SCSS

$custom: #bb3838;
$custom-light: #d7776f;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3838",
  "rgb": {
    "r": 187,
    "g": 56,
    "b": 56
  },
  "hsl": {
    "h": 0,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53542,
    "c": 0.16781,
    "h": 24.8
  },
  "luminance": 0.13679
}

Semantic roles & 50–950 ramp

primary

#BB3838

secondary

#86C8C8

accent

#DDDD4B

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3838

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

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