#173159#173159

#173159 is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.6% C 0.079 H 258.8°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#173159
RGB	rgb(23, 49, 89)
HSL	hsl(216, 59%, 22%)
HSV	hsv(216, 74%, 35%)
CMYK	cmyk(74.2%, 44.9%, 0%, 65.1%)
CIE-LAB	lab(20.44, 5.29, -27.04)
CIE-LCH	lch(20.44, 27.55, 281.08°)
OKLab	oklab(31.57% -0.0153 -0.0771)
OKLCH	oklch(31.57% 0.079 258.8)
XYZ	xyz(3.2542, 3.0997, 9.8761)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173159 #593F17

analogous

#175259 #173159 #1E1759

triadic

#173159 #591731 #315917

tetradic

#173159 #591752 #593F17 #17591E

square

#173159 #591752 #593F17 #17591E

split-complementary

#173159 #591E17 #525917

monochromatic

#060D18 #0A1628 #173159 #244C8A #3067BA

Accessibility & contrast

On white

12.96

#173159 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#173159 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173159

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173159	#FFFFFF	#000000	##FFFFFF
##173159	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E355B

Deuteranopia (green-blind)

#142E58

Tritanopia (blue-blind)

#003A40

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #173159;
/* rgb */ color: rgb(23, 49, 89);
/* oklch */ color: oklch(31.6% 0.079 258.8);

Tailwind

colors: {
  custom: {
    50: '#5d6888',
    500: '#173159',
    950: '#000000',
  },
}

SCSS

$custom: #173159;
$custom-light: #5d6888;
$custom-dark: #000000;

JSON

{
  "hex": "#173159",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 89
  },
  "hsl": {
    "h": 216.364,
    "s": 58.929,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31567,
    "c": 0.07865,
    "h": 258.8
  },
  "luminance": 0.031
}

Semantic roles & 50–950 ramp

primary

#173159

secondary

#906F3C

accent

#A446E2

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #173159

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

Preview Lab → · Contrast checker → · Palette generator →