#183956#183956

#183956 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.5% C 0.064 H 247.6°. Best body text is #FFFFFF at 11.94:1 contrast (WCAG AA passes).

Color values

HEX	#183956
RGB	rgb(24, 57, 86)
HSL	hsl(208, 56%, 22%)
HSV	hsv(208, 72%, 34%)
CMYK	cmyk(72.1%, 33.7%, 0%, 66.3%)
CIE-LAB	lab(22.97, -1.34, -21.04)
CIE-LCH	lch(22.97, 21.08, 266.37°)
OKLab	oklab(33.5% -0.0245 -0.0595)
OKLCH	oklch(33.5% 0.064 247.6)
XYZ	xyz(3.5189, 3.7920, 9.3488)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183956 #563518

analogous

#185654 #183956 #181A56

triadic

#183956 #561839 #395618

tetradic

#183956 #541856 #563518 #1A5618

square

#183956 #541856 #563518 #1A5618

split-complementary

#183956 #56181A #565418

monochromatic

#071018 #0B1926 #183956 #255986 #3378B6

Accessibility & contrast

On white

11.94

#183956 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#183956 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183956

11.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183956	#FFFFFF	#000000	##FFFFFF
##183956	1.00	11.94	1.76	11.94
#FFFFFF	11.94	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3A57

Deuteranopia (green-blind)

#243455

Tritanopia (blue-blind)

#004043

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183956;
/* rgb */ color: rgb(24, 57, 86);
/* oklch */ color: oklch(33.5% 0.064 247.6);

Tailwind

colors: {
  custom: {
    50: '#5d6f86',
    500: '#183956',
    950: '#000000',
  },
}

SCSS

$custom: #183956;
$custom-light: #5d6f86;
$custom-dark: #000000;

JSON

{
  "hex": "#183956",
  "rgb": {
    "r": 24,
    "g": 57,
    "b": 86
  },
  "hsl": {
    "h": 208.065,
    "s": 56.364,
    "l": 21.569
  },
  "oklch": {
    "l": 0.33498,
    "c": 0.06435,
    "h": 247.6
  },
  "luminance": 0.03792
}

Semantic roles & 50–950 ramp

primary

#183956

secondary

#8D623D

accent

#8F48E0

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #183956

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

Preview Lab → · Contrast checker → · Palette generator →