#173259#173259

#173259 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 31.8% C 0.077 H 257.8°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#173259
RGB	rgb(23, 50, 89)
HSL	hsl(215, 59%, 22%)
HSV	hsv(215, 74%, 35%)
CMYK	cmyk(74.2%, 43.8%, 0%, 65.1%)
CIE-LAB	lab(20.77, 4.58, -26.51)
CIE-LCH	lch(20.77, 26.90, 279.80°)
OKLab	oklab(31.82% -0.0164 -0.0756)
OKLCH	oklch(31.82% 0.077 257.8)
XYZ	xyz(3.2965, 3.1843, 9.8902)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173259 #593E17

analogous

#175359 #173259 #1D1759

triadic

#173259 #591732 #325917

tetradic

#173259 #591753 #593E17 #17591D

square

#173259 #591753 #593E17 #17591D

split-complementary

#173259 #591D17 #535917

monochromatic

#060E18 #0A1728 #173259 #244D8A #3069BA

Accessibility & contrast

On white

12.83

#173259 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#173259 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173259

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173259	#FFFFFF	#000000	##FFFFFF
##173259	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	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: #173259;
/* rgb */ color: rgb(23, 50, 89);
/* oklch */ color: oklch(31.8% 0.077 257.8);

Tailwind

colors: {
  custom: {
    50: '#5d6988',
    500: '#173259',
    950: '#000000',
  },
}

SCSS

$custom: #173259;
$custom-light: #5d6988;
$custom-dark: #000000;

JSON

{
  "hex": "#173259",
  "rgb": {
    "r": 23,
    "g": 50,
    "b": 89
  },
  "hsl": {
    "h": 215.455,
    "s": 58.929,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31822,
    "c": 0.07736,
    "h": 257.8
  },
  "luminance": 0.03185
}

Semantic roles & 50–950 ramp

primary

#173259

secondary

#906E3C

accent

#A246E2

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #173259

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

Preview Lab → · Contrast checker → · Palette generator →