#BB3640#BB3640

#BB3640 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.5% C 0.169 H 21.0°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#BB3640
RGB	rgb(187, 54, 64)
HSL	hsl(355, 55%, 47%)
HSV	hsv(355, 71%, 73%)
CMYK	cmyk(0%, 71.1%, 65.8%, 26.7%)
CIE-LAB	lab(43.62, 53.42, 25.55)
CIE-LCH	lch(43.62, 59.22, 25.56°)
OKLab	oklab(53.47% 0.1578 0.0605)
OKLCH	oklch(53.47% 0.169 21)
XYZ	xyz(22.7405, 13.5766, 6.2726)
Luminance	0.1357 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3640 #36BBB1

analogous

#BB3682 #BB3640 #BB6F36

triadic

#BB3640 #40BB36 #3640BB

tetradic

#BB3640 #82BB36 #36BBB1 #6F36BB

square

#BB3640 #82BB36 #36BBB1 #6F36BB

split-complementary

#BB3640 #36BB6F #3682BB

monochromatic

#5C1B1F #8C2830 #BB3640 #D05E66 #DE8D93

Accessibility & contrast

On white

5.65

#BB3640 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#BB3640 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3640

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3640	#FFFFFF	#000000	##FFFFFF
##BB3640	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B553F

Deuteranopia (green-blind)

#7C713C

Tritanopia (blue-blind)

#CD0A3B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bb3640;
/* rgb */ color: rgb(187, 54, 64);
/* oklch */ color: oklch(53.5% 0.169 21.0);

Tailwind

colors: {
  custom: {
    50: '#d77674',
    500: '#bb3640',
    950: '#000000',
  },
}

SCSS

$custom: #bb3640;
$custom-light: #d77674;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3640",
  "rgb": {
    "r": 187,
    "g": 54,
    "b": 64
  },
  "hsl": {
    "h": 355.489,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53467,
    "c": 0.16896,
    "h": 21
  },
  "luminance": 0.13573
}

Semantic roles & 50–950 ramp

primary

#BB3640

secondary

#84C9C3

accent

#DFD349

background

#FEF7F7

surface

#FCEEED

border

#D5C9C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #BB3640

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

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