#BB4D37#BB4D37

#BB4D37 is a mid, vivid red. Relative luminance 0.161; OKLCH L 56.1% C 0.147 H 33.1°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#BB4D37
RGB	rgb(187, 77, 55)
HSL	hsl(10, 55%, 47%)
HSV	hsv(10, 71%, 73%)
CMYK	cmyk(0%, 58.8%, 70.6%, 26.7%)
CIE-LAB	lab(47.17, 43.03, 35.09)
CIE-LCH	lch(47.17, 55.52, 39.20°)
OKLab	oklab(56.09% 0.1233 0.0803)
OKLCH	oklch(56.09% 0.147 33.1)
XYZ	xyz(23.8394, 16.1516, 5.4759)
Luminance	0.1615 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB4D37 #37A5BB

analogous

#BB3763 #BB4D37 #BB8F37

triadic

#BB4D37 #37BB4D #4D37BB

tetradic

#BB4D37 #63BB37 #37A5BB #8F37BB

square

#BB4D37 #63BB37 #37A5BB #8F37BB

split-complementary

#BB4D37 #37BB8F #3763BB

monochromatic

#5C261B #8C3A29 #BB4D37 #D0725F #DE9C8E

Accessibility & contrast

On white

4.97

#BB4D37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#BB4D37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB4D37

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB4D37	#FFFFFF	#000000	##FFFFFF
##BB4D37	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B6134

Deuteranopia (green-blind)

#867934

Tritanopia (blue-blind)

#CD3548

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #bb4d37;
/* rgb */ color: rgb(187, 77, 55);
/* oklch */ color: oklch(56.1% 0.147 33.1);

Tailwind

colors: {
  custom: {
    50: '#d6836f',
    500: '#bb4d37',
    950: '#000000',
  },
}

SCSS

$custom: #bb4d37;
$custom-light: #d6836f;
$custom-dark: #000000;

JSON

{
  "hex": "#bb4d37",
  "rgb": {
    "r": 187,
    "g": 77,
    "b": 55
  },
  "hsl": {
    "h": 10,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56093,
    "c": 0.14708,
    "h": 33.1
  },
  "luminance": 0.16148
}

Semantic roles & 50–950 ramp

primary

#BB4D37

secondary

#85BDC9

accent

#C5DE4A

background

#FEF8F6

surface

#FCEFEC

border

#D5CAC7

text

#160B07

muted

#847C7A

Preview Lab

Preview with #BB4D37

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

Preview Lab → · Contrast checker → · Palette generator →