#172859#172859

#172859 is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.4% C 0.091 H 266.4°. Best body text is #FFFFFF at 14.15:1 contrast (WCAG AA passes).

Color values

HEX	#172859
RGB	rgb(23, 40, 89)
HSL	hsl(225, 59%, 22%)
HSV	hsv(225, 74%, 35%)
CMYK	cmyk(74.2%, 55.1%, 0%, 65.1%)
CIE-LAB	lab(17.56, 11.86, -31.66)
CIE-LCH	lch(17.56, 33.81, 290.54°)
OKLab	oklab(29.35% -0.0057 -0.0909)
OKLCH	oklch(29.35% 0.091 266.4)
XYZ	xyz(2.9147, 2.4207, 9.7629)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172859 #594817

analogous

#174959 #172859 #271759

triadic

#172859 #591728 #285917

tetradic

#172859 #591749 #594817 #175927

square

#172859 #591749 #594817 #175927

split-complementary

#172859 #592717 #495917

monochromatic

#060B18 #0A1228 #172859 #243E8A #3054BA

Accessibility & contrast

On white

14.15

#172859 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#172859 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172859

14.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172859	#FFFFFF	#000000	##FFFFFF
##172859	1.00	14.15	1.48	14.15
#FFFFFF	14.15	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A2E5B

Deuteranopia (green-blind)

#002858

Tritanopia (blue-blind)

#00343C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #172859;
/* rgb */ color: rgb(23, 40, 89);
/* oklch */ color: oklch(29.4% 0.091 266.4);

Tailwind

colors: {
  custom: {
    50: '#5d6188',
    500: '#172859',
    950: '#000000',
  },
}

SCSS

$custom: #172859;
$custom-light: #5d6188;
$custom-dark: #000000;

JSON

{
  "hex": "#172859",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 89
  },
  "hsl": {
    "h": 224.545,
    "s": 58.929,
    "l": 21.961
  },
  "oklch": {
    "l": 0.29355,
    "c": 0.0911,
    "h": 266.4
  },
  "luminance": 0.02421
}

Semantic roles & 50–950 ramp

primary

#172859

secondary

#907A3C

accent

#BA46E2

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05050B

muted

#79797C

Preview Lab

Preview with #172859

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

Preview Lab → · Contrast checker → · Palette generator →