#BB3C37#BB3C37

#BB3C37 is a mid, vivid red. Relative luminance 0.141; OKLCH L 54.0% C 0.164 H 26.4°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#BB3C37
RGB	rgb(187, 60, 55)
HSL	hsl(2, 55%, 47%)
HSV	hsv(2, 71%, 73%)
CMYK	cmyk(0%, 67.9%, 70.6%, 26.7%)
CIE-LAB	lab(44.34, 50.59, 31.80)
CIE-LCH	lch(44.34, 59.75, 32.16°)
OKLab	oklab(53.96% 0.1469 0.0731)
OKLCH	oklch(53.96% 0.164 26.4)
XYZ	xyz(22.8014, 14.0757, 5.1299)
Luminance	0.1407 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3C37 #37B6BB

analogous

#BB3774 #BB3C37 #BB7E37

triadic

#BB3C37 #37BB3C #3C37BB

tetradic

#BB3C37 #74BB37 #37B6BB #7E37BB

square

#BB3C37 #74BB37 #37B6BB #7E37BB

split-complementary

#BB3C37 #37BB7E #3774BB

monochromatic

#5C1E1B #8C2D29 #BB3C37 #D0635F #DE918E

Accessibility & contrast

On white

5.51

#BB3C37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#BB3C37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3C37

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3C37	#FFFFFF	#000000	##FFFFFF
##BB3C37	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5735

Deuteranopia (green-blind)

#7F7333

Tritanopia (blue-blind)

#CD173C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #bb3c37;
/* rgb */ color: rgb(187, 60, 55);
/* oklch */ color: oklch(54.0% 0.164 26.4);

Tailwind

colors: {
  custom: {
    50: '#d7796e',
    500: '#bb3c37',
    950: '#000000',
  },
}

SCSS

$custom: #bb3c37;
$custom-light: #d7796e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3c37",
  "rgb": {
    "r": 187,
    "g": 60,
    "b": 55
  },
  "hsl": {
    "h": 2.273,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53963,
    "c": 0.16408,
    "h": 26.4
  },
  "luminance": 0.14072
}

Semantic roles & 50–950 ramp

primary

#BB3C37

secondary

#85C6C9

accent

#D8DE4A

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #BB3C37

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

Preview Lab → · Contrast checker → · Palette generator →