#BB3D37#BB3D37

#BB3D37 is a mid, vivid red. Relative luminance 0.142; OKLCH L 54.1% C 0.163 H 26.8°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#BB3D37
RGB	rgb(187, 61, 55)
HSL	hsl(3, 55%, 47%)
HSV	hsv(3, 71%, 73%)
CMYK	cmyk(0%, 67.4%, 70.6%, 26.7%)
CIE-LAB	lab(44.49, 50.18, 31.98)
CIE-LCH	lch(44.49, 59.50, 32.51°)
OKLab	oklab(54.08% 0.1456 0.0735)
OKLCH	oklch(54.08% 0.163 26.8)
XYZ	xyz(22.8543, 14.1814, 5.1476)
Luminance	0.1418 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3D37 #37B5BB

analogous

#BB3773 #BB3D37 #BB7F37

triadic

#BB3D37 #37BB3D #3D37BB

tetradic

#BB3D37 #73BB37 #37B5BB #7F37BB

square

#BB3D37 #73BB37 #37B5BB #7F37BB

split-complementary

#BB3D37 #37BB7F #3773BB

monochromatic

#5C1E1B #8C2E29 #BB3D37 #D0645F #DE928E

Accessibility & contrast

On white

5.48

#BB3D37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#BB3D37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3D37

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3D37	#FFFFFF	#000000	##FFFFFF
##BB3D37	1.00	5.48	3.84	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605835

Deuteranopia (green-blind)

#7F7333

Tritanopia (blue-blind)

#CD1A3D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #bb3d37;
/* rgb */ color: rgb(187, 61, 55);
/* oklch */ color: oklch(54.1% 0.163 26.8);

Tailwind

colors: {
  custom: {
    50: '#d77a6e',
    500: '#bb3d37',
    950: '#000000',
  },
}

SCSS

$custom: #bb3d37;
$custom-light: #d77a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3d37",
  "rgb": {
    "r": 187,
    "g": 61,
    "b": 55
  },
  "hsl": {
    "h": 2.727,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54075,
    "c": 0.1631,
    "h": 26.8
  },
  "luminance": 0.14178
}

Semantic roles & 50–950 ramp

primary

#BB3D37

secondary

#85C5C9

accent

#D7DE4A

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #BB3D37

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

Preview Lab → · Contrast checker → · Palette generator →