#B55738#B55738

#B55738 is a mid, vivid red. Relative luminance 0.169; OKLCH L 56.7% C 0.130 H 38.7°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#B55738
RGB	rgb(181, 87, 56)
HSL	hsl(15, 53%, 46%)
HSV	hsv(15, 69%, 71%)
CMYK	cmyk(0%, 51.9%, 69.1%, 29%)
CIE-LAB	lab(48.17, 35.80, 35.44)
CIE-LCH	lch(48.17, 50.37, 44.71°)
OKLab	oklab(56.67% 0.1017 0.0815)
OKLCH	oklch(56.67% 0.13 38.7)
XYZ	xyz(23.1802, 16.9285, 5.7875)
Luminance	0.1693 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B55738 #3896B5

analogous

#B53858 #B55738 #B59638

triadic

#B55738 #38B557 #5738B5

tetradic

#B55738 #58B538 #3896B5 #9638B5

square

#B55738 #58B538 #3896B5 #9638B5

split-complementary

#B55738 #38B596 #3858B5

monochromatic

#582A1B #86412A #B55738 #CD795D #DBA08C

Accessibility & contrast

On white

4.79

#B55738 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#B55738 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B55738

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B55738	#FFFFFF	#000000	##FFFFFF
##B55738	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706635

Deuteranopia (green-blind)

#877A36

Tritanopia (blue-blind)

#C64450

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #b55738;
/* rgb */ color: rgb(181, 87, 56);
/* oklch */ color: oklch(56.7% 0.130 38.7);

Tailwind

colors: {
  custom: {
    50: '#d18870',
    500: '#b55738',
    950: '#000000',
  },
}

SCSS

$custom: #b55738;
$custom-light: #d18870;
$custom-dark: #000000;

JSON

{
  "hex": "#b55738",
  "rgb": {
    "r": 181,
    "g": 87,
    "b": 56
  },
  "hsl": {
    "h": 14.88,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56667,
    "c": 0.13032,
    "h": 38.7
  },
  "luminance": 0.16926
}

Semantic roles & 50–950 ramp

primary

#B55738

secondary

#83B5C6

accent

#B8DC4C

background

#FDF8F6

surface

#FBF0EC

border

#D4CBC7

text

#150B07

muted

#837C7A

Preview Lab

Preview with #B55738

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

Preview Lab → · Contrast checker → · Palette generator →