#BB3938#BB3938

#BB3938 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.6% C 0.167 H 25.1°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#BB3938
RGB	rgb(187, 57, 56)
HSL	hsl(0, 54%, 48%)
HSV	hsv(0, 70%, 73%)
CMYK	cmyk(0%, 69.5%, 70.1%, 26.7%)
CIE-LAB	lab(43.92, 51.84, 30.71)
CIE-LCH	lch(43.92, 60.25, 30.64°)
OKLab	oklab(53.65% 0.1511 0.0709)
OKLCH	oklch(53.65% 0.167 25.1)
XYZ	xyz(22.6729, 13.7799, 5.2065)
Luminance	0.1378 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3938 #38BABB

analogous

#BB3878 #BB3938 #BB7A38

triadic

#BB3938 #38BB39 #3938BB

tetradic

#BB3938 #78BB38 #38BABB #7A38BB

square

#BB3938 #78BB38 #38BABB #7A38BB

split-complementary

#BB3938 #38BB7A #3878BB

monochromatic

#5D1C1C #8C2B2A #BB3938 #D06161 #DE9090

Accessibility & contrast

On white

5.59

#BB3938 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#BB3938 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3938

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3938	#FFFFFF	#000000	##FFFFFF
##BB3938	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5637

Deuteranopia (green-blind)

#7E7234

Tritanopia (blue-blind)

#CD0F3A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bb3938;
/* rgb */ color: rgb(187, 57, 56);
/* oklch */ color: oklch(53.6% 0.167 25.1);

Tailwind

colors: {
  custom: {
    50: '#d7786f',
    500: '#bb3938',
    950: '#000000',
  },
}

SCSS

$custom: #bb3938;
$custom-light: #d7786f;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3938",
  "rgb": {
    "r": 187,
    "g": 57,
    "b": 56
  },
  "hsl": {
    "h": 0.458,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53649,
    "c": 0.16685,
    "h": 25.1
  },
  "luminance": 0.13777
}

Semantic roles & 50–950 ramp

primary

#BB3938

secondary

#86C8C8

accent

#DCDD4B

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3938

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

Preview Lab → · Contrast checker → · Palette generator →