#183259#183259

#183259 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 31.9% C 0.077 H 258.4°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#183259
RGB	rgb(24, 50, 89)
HSL	hsl(216, 58%, 22%)
HSV	hsv(216, 73%, 35%)
CMYK	cmyk(73%, 43.8%, 0%, 65.1%)
CIE-LAB	lab(20.81, 4.76, -26.44)
CIE-LCH	lch(20.81, 26.86, 280.21°)
OKLab	oklab(31.87% -0.0155 -0.0754)
OKLCH	oklch(31.87% 0.077 258.4)
XYZ	xyz(3.3198, 3.1963, 9.8913)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183259 #593F18

analogous

#185359 #183259 #1F1859

triadic

#183259 #591832 #325918

tetradic

#183259 #591853 #593F18 #18591F

square

#183259 #591853 #593F18 #18591F

split-complementary

#183259 #591F18 #535918

monochromatic

#060E18 #0B1729 #183259 #254D89 #3268B9

Accessibility & contrast

On white

12.81

#183259 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#183259 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183259

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183259	#FFFFFF	#000000	##FFFFFF
##183259	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20355B

Deuteranopia (green-blind)

#162F58

Tritanopia (blue-blind)

#003B41

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #183259;
/* rgb */ color: rgb(24, 50, 89);
/* oklch */ color: oklch(31.9% 0.077 258.4);

Tailwind

colors: {
  custom: {
    50: '#5d6988',
    500: '#183259',
    950: '#000000',
  },
}

SCSS

$custom: #183259;
$custom-light: #5d6988;
$custom-dark: #000000;

JSON

{
  "hex": "#183259",
  "rgb": {
    "r": 24,
    "g": 50,
    "b": 89
  },
  "hsl": {
    "h": 216,
    "s": 57.522,
    "l": 22.157
  },
  "oklch": {
    "l": 0.3187,
    "c": 0.07694,
    "h": 258.4
  },
  "luminance": 0.03197
}

Semantic roles & 50–950 ramp

primary

#183259

secondary

#906F3D

accent

#A347E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #183259

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

Preview Lab → · Contrast checker → · Palette generator →