#BB3439#BB3439

#BB3439 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.1% C 0.171 H 23.3°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#BB3439
RGB	rgb(187, 52, 57)
HSL	hsl(358, 56%, 47%)
HSV	hsv(358, 72%, 73%)
CMYK	cmyk(0%, 72.2%, 69.5%, 26.7%)
CIE-LAB	lab(43.24, 53.78, 29.31)
CIE-LCH	lch(43.24, 61.25, 28.59°)
OKLab	oklab(53.15% 0.1574 0.0679)
OKLCH	oklch(53.15% 0.171 23.3)
XYZ	xyz(22.4625, 13.3195, 5.2583)
Luminance	0.1332 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3439 #34BBB6

analogous

#BB347D #BB3439 #BB7334

triadic

#BB3439 #39BB34 #3439BB

tetradic

#BB3439 #7DBB34 #34BBB6 #7334BB

square

#BB3439 #7DBB34 #34BBB6 #7334BB

split-complementary

#BB3439 #34BB73 #347DBB

monochromatic

#5B191C #8B272A #BB3439 #D15B5F #DF8B8E

Accessibility & contrast

On white

5.73

#BB3439 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#BB3439 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3439

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3439	#FFFFFF	#000000	##FFFFFF
##BB3439	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5438

Deuteranopia (green-blind)

#7C7135

Tritanopia (blue-blind)

#CE0037

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #bb3439;
/* rgb */ color: rgb(187, 52, 57);
/* oklch */ color: oklch(53.1% 0.171 23.3);

Tailwind

colors: {
  custom: {
    50: '#d7756f',
    500: '#bb3439',
    950: '#000000',
  },
}

SCSS

$custom: #bb3439;
$custom-light: #d7756f;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3439",
  "rgb": {
    "r": 187,
    "g": 52,
    "b": 57
  },
  "hsl": {
    "h": 357.778,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53149,
    "c": 0.17147,
    "h": 23.3
  },
  "luminance": 0.13316
}

Semantic roles & 50–950 ramp

primary

#BB3439

secondary

#82C9C6

accent

#E0DA48

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3439

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

Preview Lab → · Contrast checker → · Palette generator →