#55181A#55181A

#55181A is a dark, moderate red. Relative luminance 0.027; OKLCH L 30.9% C 0.090 H 22.3°. Best body text is #FFFFFF at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#55181A
RGB	rgb(85, 24, 26)
HSL	hsl(358, 56%, 21%)
HSV	hsv(358, 72%, 33%)
CMYK	cmyk(0%, 71.8%, 69.4%, 66.7%)
CIE-LAB	lab(18.63, 28.35, 14.39)
CIE-LCH	lch(18.63, 31.80, 26.91°)
OKLab	oklab(30.95% 0.0837 0.0343)
OKLCH	oklch(30.95% 0.09 22.3)
XYZ	xyz(4.2598, 2.6597, 1.2662)
Luminance	0.0266 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55181A #185553

analogous

#551839 #55181A #553518

triadic

#55181A #1A5518 #181A55

tetradic

#55181A #395518 #185553 #351855

square

#55181A #395518 #185553 #351855

split-complementary

#55181A #185535 #183955

monochromatic

#180707 #250B0B #55181A #852529 #B43337

Accessibility & contrast

On white

13.71

#55181A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#55181A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55181A

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55181A	#FFFFFF	#000000	##FFFFFF
##55181A	1.00	13.71	1.53	13.71
#FFFFFF	13.71	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28251A

Deuteranopia (green-blind)

#383218

Tritanopia (blue-blind)

#5E0A19

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #55181a;
/* rgb */ color: rgb(85, 24, 26);
/* oklch */ color: oklch(30.9% 0.090 22.3);

Tailwind

colors: {
  custom: {
    50: '#8a5956',
    500: '#55181a',
    950: '#000000',
  },
}

SCSS

$custom: #55181a;
$custom-light: #8a5956;
$custom-dark: #000000;

JSON

{
  "hex": "#55181a",
  "rgb": {
    "r": 85,
    "g": 24,
    "b": 26
  },
  "hsl": {
    "h": 358.033,
    "s": 55.963,
    "l": 21.373
  },
  "oklch": {
    "l": 0.30945,
    "c": 0.09041,
    "h": 22.3
  },
  "luminance": 0.02659
}

Semantic roles & 50–950 ramp

primary

#55181A

secondary

#3D8C89

accent

#DFDA49

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #55181A

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

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