#BB3531#BB3531

#BB3531 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.1% C 0.172 H 26.6°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#BB3531
RGB	rgb(187, 53, 49)
HSL	hsl(2, 58%, 46%)
HSV	hsv(2, 74%, 73%)
CMYK	cmyk(0%, 71.7%, 73.8%, 26.7%)
CIE-LAB	lab(43.27, 53.04, 34.05)
CIE-LCH	lch(43.27, 63.03, 32.70°)
OKLab	oklab(53.13% 0.1534 0.0768)
OKLCH	oklch(53.13% 0.172 26.6)
XYZ	xyz(22.3235, 13.3361, 4.3038)
Luminance	0.1333 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3531 #31B7BB

analogous

#BB3172 #BB3531 #BB7A31

triadic

#BB3531 #31BB35 #3531BB

tetradic

#BB3531 #72BB31 #31B7BB #7A31BB

square

#BB3531 #72BB31 #31B7BB #7A31BB

split-complementary

#BB3531 #31BB7A #3172BB

monochromatic

#5A1A18 #8B2724 #BB3531 #D35A56 #E08987

Accessibility & contrast

On white

5.73

#BB3531 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#BB3531 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3531

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3531	#FFFFFF	#000000	##FFFFFF
##BB3531	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C542F

Deuteranopia (green-blind)

#7D712C

Tritanopia (blue-blind)

#CE0036

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #bb3531;
/* rgb */ color: rgb(187, 53, 49);
/* oklch */ color: oklch(53.1% 0.172 26.6);

Tailwind

colors: {
  custom: {
    50: '#d87569',
    500: '#bb3531',
    950: '#000000',
  },
}

SCSS

$custom: #bb3531;
$custom-light: #d87569;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3531",
  "rgb": {
    "r": 187,
    "g": 53,
    "b": 49
  },
  "hsl": {
    "h": 1.739,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53133,
    "c": 0.17152,
    "h": 26.6
  },
  "luminance": 0.13333
}

Semantic roles & 50–950 ramp

primary

#BB3531

secondary

#7FC7C9

accent

#DDE246

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB3531

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

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