#55181E#55181E

#55181E is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.0% C 0.090 H 18.5°. Best body text is #FFFFFF at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#55181E
RGB	rgb(85, 24, 30)
HSL	hsl(354, 56%, 21%)
HSV	hsv(354, 72%, 33%)
CMYK	cmyk(0%, 71.8%, 64.7%, 66.7%)
CIE-LAB	lab(18.71, 28.66, 11.70)
CIE-LCH	lch(18.71, 30.96, 22.21°)
OKLab	oklab(31.03% 0.0855 0.0286)
OKLCH	oklch(31.03% 0.09 18.5)
XYZ	xyz(4.3077, 2.6789, 1.5183)
Luminance	0.0268 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55181E #18554F

analogous

#55183D #55181E #553118

triadic

#55181E #1E5518 #181E55

tetradic

#55181E #3D5518 #18554F #311855

square

#55181E #3D5518 #18554F #311855

split-complementary

#55181E #185531 #183D55

monochromatic

#180708 #250B0D #55181E #85252F #B43340

Accessibility & contrast

On white

13.68

#55181E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#55181E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55181E

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55181E	#FFFFFF	#000000	##FFFFFF
##55181E	1.00	13.68	1.54	13.68
#FFFFFF	13.68	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28251E

Deuteranopia (green-blind)

#37321C

Tritanopia (blue-blind)

#5E0B1B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #55181e;
/* rgb */ color: rgb(85, 24, 30);
/* oklch */ color: oklch(31.0% 0.090 18.5);

Tailwind

colors: {
  custom: {
    50: '#8a5959',
    500: '#55181e',
    950: '#000000',
  },
}

SCSS

$custom: #55181e;
$custom-light: #8a5959;
$custom-dark: #000000;

JSON

{
  "hex": "#55181e",
  "rgb": {
    "r": 85,
    "g": 24,
    "b": 30
  },
  "hsl": {
    "h": 354.098,
    "s": 55.963,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31033,
    "c": 0.09012,
    "h": 18.5
  },
  "luminance": 0.02678
}

Semantic roles & 50–950 ramp

primary

#55181E

secondary

#3D8C84

accent

#DFD049

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0C0403

muted

#7D7978

Preview Lab

Preview with #55181E

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

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