#BB3438#BB3438

#BB3438 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.1% C 0.172 H 23.7°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#BB3438
RGB	rgb(187, 52, 56)
HSL	hsl(358, 56%, 47%)
HSV	hsv(358, 72%, 73%)
CMYK	cmyk(0%, 72.2%, 70.1%, 26.7%)
CIE-LAB	lab(43.23, 53.73, 29.89)
CIE-LCH	lch(43.23, 61.49, 29.08°)
OKLab	oklab(53.13% 0.1571 0.069)
OKLCH	oklch(53.13% 0.172 23.7)
XYZ	xyz(22.4378, 13.3097, 5.1282)
Luminance	0.1331 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3438 #34BBB7

analogous

#BB347C #BB3438 #BB7434

triadic

#BB3438 #38BB34 #3438BB

tetradic

#BB3438 #7CBB34 #34BBB7 #7434BB

square

#BB3438 #7CBB34 #34BBB7 #7434BB

split-complementary

#BB3438 #34BB74 #347CBB

monochromatic

#5B191B #8B272A #BB3438 #D15B5E #DF8B8D

Accessibility & contrast

On white

5.74

#BB3438 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#BB3438 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3438

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3438	#FFFFFF	#000000	##FFFFFF
##BB3438	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5437

Deuteranopia (green-blind)

#7C7134

Tritanopia (blue-blind)

#CE0037

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #bb3438;
/* rgb */ color: rgb(187, 52, 56);
/* oklch */ color: oklch(53.1% 0.172 23.7);

Tailwind

colors: {
  custom: {
    50: '#d7756e',
    500: '#bb3438',
    950: '#000000',
  },
}

SCSS

$custom: #bb3438;
$custom-light: #d7756e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3438",
  "rgb": {
    "r": 187,
    "g": 52,
    "b": 56
  },
  "hsl": {
    "h": 358.222,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53134,
    "c": 0.17157,
    "h": 23.7
  },
  "luminance": 0.13306
}

Semantic roles & 50–950 ramp

primary

#BB3438

secondary

#82C9C7

accent

#E0DB48

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3438

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

Preview Lab → · Contrast checker → · Palette generator →