#55100D#55100D

#55100D is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.8% C 0.101 H 27.7°. Best body text is #FFFFFF at 14.32:1 contrast (WCAG AA passes).

Color values

HEX	#55100D
RGB	rgb(85, 16, 13)
HSL	hsl(3, 73%, 19%)
HSV	hsv(3, 85%, 33%)
CMYK	cmyk(0%, 81.2%, 84.7%, 66.7%)
CIE-LAB	lab(17.14, 31.14, 20.68)
CIE-LCH	lch(17.14, 37.39, 33.59°)
OKLab	oklab(29.77% 0.0894 0.047)
OKLCH	oklch(29.77% 0.101 27.7)
XYZ	xyz(4.0047, 2.3316, 0.6199)
Luminance	0.0233 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55100D #0D5255

analogous

#550D2E #55100D #55340D

triadic

#55100D #0D5510 #100D55

tetradic

#55100D #2E550D #0D5255 #340D55

square

#55100D #2E550D #0D5255 #340D55

split-complementary

#55100D #0D5534 #0D2E55

monochromatic

#1B0504 #200605 #55100D #8A1A15 #BF241D

Accessibility & contrast

On white

14.32

#55100D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#55100D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55100D

14.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55100D	#FFFFFF	#000000	##FFFFFF
##55100D	1.00	14.32	1.47	14.32
#FFFFFF	14.32	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25210C

Deuteranopia (green-blind)

#36300A

Tritanopia (blue-blind)

#5E0010

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #55100d;
/* rgb */ color: rgb(85, 16, 13);
/* oklch */ color: oklch(29.8% 0.101 27.7);

Tailwind

colors: {
  custom: {
    50: '#8b554c',
    500: '#55100d',
    950: '#000000',
  },
}

SCSS

$custom: #55100d;
$custom-light: #8b554c;
$custom-dark: #000000;

JSON

{
  "hex": "#55100d",
  "rgb": {
    "r": 85,
    "g": 16,
    "b": 13
  },
  "hsl": {
    "h": 2.5,
    "s": 73.469,
    "l": 19.216
  },
  "oklch": {
    "l": 0.29768,
    "c": 0.10094,
    "h": 27.7
  },
  "luminance": 0.02331
}

Semantic roles & 50–950 ramp

primary

#55100D

secondary

#2E8C90

accent

#E8F038

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0301

muted

#7E7877

Preview Lab

Preview with #55100D

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

Preview Lab → · Contrast checker → · Palette generator →