#183656#183656

#183656 is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.7% C 0.068 H 251.9°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#183656
RGB	rgb(24, 54, 86)
HSL	hsl(211, 56%, 22%)
HSV	hsv(211, 72%, 34%)
CMYK	cmyk(72.1%, 37.2%, 0%, 66.3%)
CIE-LAB	lab(21.96, 0.72, -22.63)
CIE-LCH	lch(21.96, 22.65, 271.83°)
OKLab	oklab(32.7% -0.021 -0.0642)
OKLCH	oklch(32.7% 0.068 251.9)
XYZ	xyz(3.3750, 3.5041, 9.3008)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183656 #563818

analogous

#185556 #183656 #191856

triadic

#183656 #561836 #365618

tetradic

#183656 #561855 #563818 #185619

square

#183656 #561855 #563818 #185619

split-complementary

#183656 #561918 #555618

monochromatic

#070F18 #0B1826 #183656 #255486 #3372B6

Accessibility & contrast

On white

12.35

#183656 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#183656 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183656

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183656	#FFFFFF	#000000	##FFFFFF
##183656	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283857

Deuteranopia (green-blind)

#1F3255

Tritanopia (blue-blind)

#003D42

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #183656;
/* rgb */ color: rgb(24, 54, 86);
/* oklch */ color: oklch(32.7% 0.068 251.9);

Tailwind

colors: {
  custom: {
    50: '#5d6c86',
    500: '#183656',
    950: '#000000',
  },
}

SCSS

$custom: #183656;
$custom-light: #5d6c86;
$custom-dark: #000000;

JSON

{
  "hex": "#183656",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 86
  },
  "hsl": {
    "h": 210.968,
    "s": 56.364,
    "l": 21.569
  },
  "oklch": {
    "l": 0.32703,
    "c": 0.06751,
    "h": 251.9
  },
  "luminance": 0.03504
}

Semantic roles & 50–950 ramp

primary

#183656

secondary

#8D663D

accent

#9648E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #183656

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

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