#183556#183556

#183556 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.4% C 0.069 H 253.2°. Best body text is #FFFFFF at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#183556
RGB	rgb(24, 53, 86)
HSL	hsl(212, 56%, 22%)
HSV	hsv(212, 72%, 34%)
CMYK	cmyk(72.1%, 38.4%, 0%, 66.3%)
CIE-LAB	lab(21.62, 1.42, -23.16)
CIE-LCH	lch(21.62, 23.21, 273.51°)
OKLab	oklab(32.44% -0.0198 -0.0657)
OKLCH	oklch(32.44% 0.069 253.2)
XYZ	xyz(3.3289, 3.4119, 9.2854)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183556 #563918

analogous

#185456 #183556 #1A1856

triadic

#183556 #561835 #355618

tetradic

#183556 #561854 #563918 #18561A

square

#183556 #561854 #563918 #18561A

split-complementary

#183556 #561A18 #545618

monochromatic

#070F18 #0B1826 #183556 #255286 #3370B6

Accessibility & contrast

On white

12.48

#183556 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#183556 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183556

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183556	#FFFFFF	#000000	##FFFFFF
##183556	1.00	12.48	1.68	12.48
#FFFFFF	12.48	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263757

Deuteranopia (green-blind)

#1E3155

Tritanopia (blue-blind)

#003D41

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #183556;
/* rgb */ color: rgb(24, 53, 86);
/* oklch */ color: oklch(32.4% 0.069 253.2);

Tailwind

colors: {
  custom: {
    50: '#5d6b86',
    500: '#183556',
    950: '#000000',
  },
}

SCSS

$custom: #183556;
$custom-light: #5d6b86;
$custom-dark: #000000;

JSON

{
  "hex": "#183556",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 86
  },
  "hsl": {
    "h": 211.935,
    "s": 56.364,
    "l": 21.569
  },
  "oklch": {
    "l": 0.32441,
    "c": 0.06864,
    "h": 253.2
  },
  "luminance": 0.03412
}

Semantic roles & 50–950 ramp

primary

#183556

secondary

#8D673D

accent

#9948E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #183556

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

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