#BB3540#BB3540

#BB3540 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.4% C 0.170 H 20.7°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#BB3540
RGB	rgb(187, 53, 64)
HSL	hsl(355, 56%, 47%)
HSV	hsv(355, 72%, 73%)
CMYK	cmyk(0%, 71.7%, 65.8%, 26.7%)
CIE-LAB	lab(43.48, 53.79, 25.38)
CIE-LCH	lch(43.48, 59.48, 25.26°)
OKLab	oklab(53.37% 0.1589 0.0602)
OKLCH	oklch(53.37% 0.17 20.7)
XYZ	xyz(22.6944, 13.4845, 6.2573)
Luminance	0.1348 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3540 #35BBB0

analogous

#BB3583 #BB3540 #BB6D35

triadic

#BB3540 #40BB35 #3540BB

tetradic

#BB3540 #83BB35 #35BBB0 #6D35BB

square

#BB3540 #83BB35 #35BBB0 #6D35BB

split-complementary

#BB3540 #35BB6D #3583BB

monochromatic

#5C1A1F #8B2730 #BB3540 #D15C66 #DE8C93

Accessibility & contrast

On white

5.68

#BB3540 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#BB3540 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3540

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3540	#FFFFFF	#000000	##FFFFFF
##BB3540	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A553F

Deuteranopia (green-blind)

#7C713C

Tritanopia (blue-blind)

#CD063A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bb3540;
/* rgb */ color: rgb(187, 53, 64);
/* oklch */ color: oklch(53.4% 0.170 20.7);

Tailwind

colors: {
  custom: {
    50: '#d77674',
    500: '#bb3540',
    950: '#000000',
  },
}

SCSS

$custom: #bb3540;
$custom-light: #d77674;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3540",
  "rgb": {
    "r": 187,
    "g": 53,
    "b": 64
  },
  "hsl": {
    "h": 355.075,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53366,
    "c": 0.16994,
    "h": 20.7
  },
  "luminance": 0.13481
}

Semantic roles & 50–950 ramp

primary

#BB3540

secondary

#83C9C3

accent

#DFD349

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #BB3540

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

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