#BB3831#BB3831

#BB3831 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.169 H 27.5°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#BB3831
RGB	rgb(187, 56, 49)
HSL	hsl(3, 58%, 46%)
HSV	hsv(3, 74%, 73%)
CMYK	cmyk(0%, 70.1%, 73.8%, 26.7%)
CIE-LAB	lab(43.68, 51.90, 34.52)
CIE-LCH	lch(43.68, 62.33, 33.63°)
OKLab	oklab(53.44% 0.1498 0.0778)
OKLCH	oklch(53.44% 0.169 27.5)
XYZ	xyz(22.4646, 13.6183, 4.3508)
Luminance	0.1361 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3831 #31B4BB

analogous

#BB316F #BB3831 #BB7D31

triadic

#BB3831 #31BB38 #3831BB

tetradic

#BB3831 #6FBB31 #31B4BB #7D31BB

square

#BB3831 #6FBB31 #31B4BB #7D31BB

split-complementary

#BB3831 #31BB7D #316FBB

monochromatic

#5A1B18 #8B2924 #BB3831 #D35D56 #E08B87

Accessibility & contrast

On white

5.64

#BB3831 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#BB3831 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3831

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3831	#FFFFFF	#000000	##FFFFFF
##BB3831	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E552F

Deuteranopia (green-blind)

#7E722C

Tritanopia (blue-blind)

#CE0838

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bb3831;
/* rgb */ color: rgb(187, 56, 49);
/* oklch */ color: oklch(53.4% 0.169 27.5);

Tailwind

colors: {
  custom: {
    50: '#d87769',
    500: '#bb3831',
    950: '#000000',
  },
}

SCSS

$custom: #bb3831;
$custom-light: #d87769;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3831",
  "rgb": {
    "r": 187,
    "g": 56,
    "b": 49
  },
  "hsl": {
    "h": 3.043,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53443,
    "c": 0.16879,
    "h": 27.5
  },
  "luminance": 0.13615
}

Semantic roles & 50–950 ramp

primary

#BB3831

secondary

#7FC5C9

accent

#DAE246

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3831

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

Preview Lab → · Contrast checker → · Palette generator →