#183255#183255

#183255 is a dark, moderate cyan. Relative luminance 0.031; OKLCH L 31.6% C 0.071 H 256.5°. Best body text is #FFFFFF at 12.91:1 contrast (WCAG AA passes).

Color values

HEX	#183255
RGB	rgb(24, 50, 85)
HSL	hsl(214, 56%, 21%)
HSV	hsv(214, 72%, 33%)
CMYK	cmyk(71.8%, 41.2%, 0%, 66.7%)
CIE-LAB	lab(20.56, 3.12, -24.18)
CIE-LCH	lch(20.56, 24.38, 277.36°)
OKLab	oklab(31.59% -0.0166 -0.0688)
OKLCH	oklch(31.59% 0.071 256.5)
XYZ	xyz(3.1564, 3.1310, 9.0306)
Luminance	0.0313 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183255 #553B18

analogous

#185155 #183255 #1D1855

triadic

#183255 #551832 #325518

tetradic

#183255 #551851 #553B18 #18551D

square

#183255 #551851 #553B18 #18551D

split-complementary

#183255 #551D18 #515518

monochromatic

#070E18 #0B1625 #183255 #254E85 #336AB4

Accessibility & contrast

On white

12.91

#183255 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#183255 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183255

12.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183255	#FFFFFF	#000000	##FFFFFF
##183255	1.00	12.91	1.63	12.91
#FFFFFF	12.91	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223556

Deuteranopia (green-blind)

#1A2F54

Tritanopia (blue-blind)

#003A3F

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #183255;
/* rgb */ color: rgb(24, 50, 85);
/* oklch */ color: oklch(31.6% 0.071 256.5);

Tailwind

colors: {
  custom: {
    50: '#5d6985',
    500: '#183255',
    950: '#000000',
  },
}

SCSS

$custom: #183255;
$custom-light: #5d6985;
$custom-dark: #000000;

JSON

{
  "hex": "#183255",
  "rgb": {
    "r": 24,
    "g": 50,
    "b": 85
  },
  "hsl": {
    "h": 214.426,
    "s": 55.963,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31592,
    "c": 0.07073,
    "h": 256.5
  },
  "luminance": 0.03131
}

Semantic roles & 50–950 ramp

primary

#183255

secondary

#8C6A3D

accent

#9F49DF

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #183255

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

Preview Lab → · Contrast checker → · Palette generator →