#BB5437#BB5437

#BB5437 is a mid, vivid red. Relative luminance 0.172; OKLCH L 57.1% C 0.140 H 36.6°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#BB5437
RGB	rgb(187, 84, 55)
HSL	hsl(13, 55%, 47%)
HSV	hsv(13, 71%, 73%)
CMYK	cmyk(0%, 55.1%, 70.6%, 26.7%)
CIE-LAB	lab(48.49, 39.60, 36.60)
CIE-LCH	lch(48.49, 53.93, 42.75°)
OKLab	oklab(57.09% 0.1127 0.0836)
OKLCH	oklch(57.09% 0.14 36.6)
XYZ	xyz(24.3558, 17.1844, 5.6480)
Luminance	0.1718 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB5437 #379EBB

analogous

#BB375C #BB5437 #BB9637

triadic

#BB5437 #37BB54 #5437BB

tetradic

#BB5437 #5CBB37 #379EBB #9637BB

square

#BB5437 #5CBB37 #379EBB #9637BB

split-complementary

#BB5437 #37BB96 #375CBB

monochromatic

#5C2A1B #8C3F29 #BB5437 #D0785F #DEA08E

Accessibility & contrast

On white

4.73

#BB5437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#BB5437 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB5437

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB5437	#FFFFFF	#000000	##FFFFFF
##BB5437	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706534

Deuteranopia (green-blind)

#897C34

Tritanopia (blue-blind)

#CD3F4E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #bb5437;
/* rgb */ color: rgb(187, 84, 55);
/* oklch */ color: oklch(57.1% 0.140 36.6);

Tailwind

colors: {
  custom: {
    50: '#d6876f',
    500: '#bb5437',
    950: '#000000',
  },
}

SCSS

$custom: #bb5437;
$custom-light: #d6876f;
$custom-dark: #000000;

JSON

{
  "hex": "#bb5437",
  "rgb": {
    "r": 187,
    "g": 84,
    "b": 55
  },
  "hsl": {
    "h": 13.182,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.57092,
    "c": 0.14025,
    "h": 36.6
  },
  "luminance": 0.17181
}

Semantic roles & 50–950 ramp

primary

#BB5437

secondary

#85BAC9

accent

#BDDE4A

background

#FEF8F6

surface

#FCF0EC

border

#D5CBC7

text

#160B07

muted

#847C7A

Preview Lab

Preview with #BB5437

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

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