#BB3431#BB3431

#BB3431 is a mid, vivid red. Relative luminance 0.132; OKLCH L 53.0% C 0.172 H 26.3°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#BB3431
RGB	rgb(187, 52, 49)
HSL	hsl(1, 58%, 46%)
HSV	hsv(1, 74%, 73%)
CMYK	cmyk(0%, 72.2%, 73.8%, 26.7%)
CIE-LAB	lab(43.13, 53.41, 33.90)
CIE-LCH	lch(43.13, 63.26, 32.41°)
OKLab	oklab(53.03% 0.1545 0.0765)
OKLCH	oklch(53.03% 0.172 26.3)
XYZ	xyz(22.2784, 13.2459, 4.2888)
Luminance	0.1324 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3431 #31B8BB

analogous

#BB3173 #BB3431 #BB7931

triadic

#BB3431 #31BB34 #3431BB

tetradic

#BB3431 #73BB31 #31B8BB #7931BB

square

#BB3431 #73BB31 #31B8BB #7931BB

split-complementary

#BB3431 #31BB79 #3173BB

monochromatic

#5A1918 #8B2724 #BB3431 #D35956 #E08987

Accessibility & contrast

On white

5.76

#BB3431 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#BB3431 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3431

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3431	#FFFFFF	#000000	##FFFFFF
##BB3431	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B532F

Deuteranopia (green-blind)

#7D712C

Tritanopia (blue-blind)

#CE0035

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #bb3431;
/* rgb */ color: rgb(187, 52, 49);
/* oklch */ color: oklch(53.0% 0.172 26.3);

Tailwind

colors: {
  custom: {
    50: '#d87569',
    500: '#bb3431',
    950: '#000000',
  },
}

SCSS

$custom: #bb3431;
$custom-light: #d87569;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3431",
  "rgb": {
    "r": 187,
    "g": 52,
    "b": 49
  },
  "hsl": {
    "h": 1.304,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53033,
    "c": 0.17242,
    "h": 26.3
  },
  "luminance": 0.13243
}

Semantic roles & 50–950 ramp

primary

#BB3431

secondary

#7FC8C9

accent

#DEE246

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3431

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

Preview Lab → · Contrast checker → · Palette generator →