#BB3538#BB3538

#BB3538 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.2% C 0.171 H 24.0°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#BB3538
RGB	rgb(187, 53, 56)
HSL	hsl(359, 56%, 47%)
HSV	hsv(359, 72%, 73%)
CMYK	cmyk(0%, 71.7%, 70.1%, 26.7%)
CIE-LAB	lab(43.36, 53.36, 30.05)
CIE-LCH	lch(43.36, 61.24, 29.38°)
OKLab	oklab(53.23% 0.1559 0.0694)
OKLCH	oklch(53.23% 0.171 24)
XYZ	xyz(22.4829, 13.3999, 5.1432)
Luminance	0.1340 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3538 #35BBB8

analogous

#BB357B #BB3538 #BB7535

triadic

#BB3538 #38BB35 #3538BB

tetradic

#BB3538 #7BBB35 #35BBB8 #7535BB

square

#BB3538 #7BBB35 #35BBB8 #7535BB

split-complementary

#BB3538 #35BB75 #357BBB

monochromatic

#5C1A1B #8B272A #BB3538 #D15C5F #DE8C8E

Accessibility & contrast

On white

5.71

#BB3538 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#BB3538 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3538

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3538	#FFFFFF	#000000	##FFFFFF
##BB3538	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5437

Deuteranopia (green-blind)

#7D7134

Tritanopia (blue-blind)

#CE0038

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #bb3538;
/* rgb */ color: rgb(187, 53, 56);
/* oklch */ color: oklch(53.2% 0.171 24.0);

Tailwind

colors: {
  custom: {
    50: '#d7766e',
    500: '#bb3538',
    950: '#000000',
  },
}

SCSS

$custom: #bb3538;
$custom-light: #d7766e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3538",
  "rgb": {
    "r": 187,
    "g": 53,
    "b": 56
  },
  "hsl": {
    "h": 358.657,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53233,
    "c": 0.17065,
    "h": 24
  },
  "luminance": 0.13397
}

Semantic roles & 50–950 ramp

primary

#BB3538

secondary

#83C9C7

accent

#DFDC49

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3538

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

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