#BB3931#BB3931

#BB3931 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.5% C 0.168 H 27.8°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#BB3931
RGB	rgb(187, 57, 49)
HSL	hsl(3, 58%, 46%)
HSV	hsv(3, 74%, 73%)
CMYK	cmyk(0%, 69.5%, 73.8%, 26.7%)
CIE-LAB	lab(43.82, 51.51, 34.68)
CIE-LCH	lch(43.82, 62.10, 33.95°)
OKLab	oklab(53.55% 0.1485 0.0782)
OKLCH	oklch(53.55% 0.168 27.8)
XYZ	xyz(22.5135, 13.7162, 4.3672)
Luminance	0.1371 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3931 #31B3BB

analogous

#BB316E #BB3931 #BB7E31

triadic

#BB3931 #31BB39 #3931BB

tetradic

#BB3931 #6EBB31 #31B3BB #7E31BB

square

#BB3931 #6EBB31 #31B3BB #7E31BB

split-complementary

#BB3931 #31BB7E #316EBB

monochromatic

#5A1B18 #8B2A24 #BB3931 #D35E56 #E08C87

Accessibility & contrast

On white

5.61

#BB3931 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#BB3931 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3931

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3931	#FFFFFF	#000000	##FFFFFF
##BB3931	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E562F

Deuteranopia (green-blind)

#7F722C

Tritanopia (blue-blind)

#CE0C38

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #bb3931;
/* rgb */ color: rgb(187, 57, 49);
/* oklch */ color: oklch(53.5% 0.168 27.8);

Tailwind

colors: {
  custom: {
    50: '#d8776a',
    500: '#bb3931',
    950: '#000000',
  },
}

SCSS

$custom: #bb3931;
$custom-light: #d8776a;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3931",
  "rgb": {
    "r": 187,
    "g": 57,
    "b": 49
  },
  "hsl": {
    "h": 3.478,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.5355,
    "c": 0.16786,
    "h": 27.8
  },
  "luminance": 0.13713
}

Semantic roles & 50–950 ramp

primary

#BB3931

secondary

#7FC5C9

accent

#D9E246

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3931

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

Preview Lab → · Contrast checker → · Palette generator →