#173564#173564

#173564 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.4% C 0.090 H 259.1°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#173564
RGB	rgb(23, 53, 100)
HSL	hsl(217, 63%, 24%)
HSV	hsv(217, 77%, 39%)
CMYK	cmyk(77%, 47%, 0%, 60.8%)
CIE-LAB	lab(22.47, 7.01, -31.01)
CIE-LCH	lch(22.47, 31.79, 282.74°)
OKLab	oklab(33.38% -0.017 -0.0887)
OKLCH	oklch(33.38% 0.09 259.1)
XYZ	xyz(3.9259, 3.6480, 12.5514)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173564 #644617

analogous

#175C64 #173564 #1F1764

triadic

#173564 #641735 #356417

tetradic

#173564 #64175C #644617 #17641F

square

#173564 #64175C #644617 #17641F

split-complementary

#173564 #641F17 #5C6417

monochromatic

#060D19 #0C1B32 #173564 #224F96 #2E6AC8

Accessibility & contrast

On white

12.14

#173564 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#173564 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173564

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173564	#FFFFFF	#000000	##FFFFFF
##173564	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3A66

Deuteranopia (green-blind)

#0F3263

Tritanopia (blue-blind)

#004047

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173564;
/* rgb */ color: rgb(23, 53, 100);
/* oklch */ color: oklch(33.4% 0.090 259.1);

Tailwind

colors: {
  custom: {
    50: '#606b90',
    500: '#173564',
    950: '#000000',
  },
}

SCSS

$custom: #173564;
$custom-light: #606b90;
$custom-dark: #000000;

JSON

{
  "hex": "#173564",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 100
  },
  "hsl": {
    "h": 216.623,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33378,
    "c": 0.09036,
    "h": 259.1
  },
  "luminance": 0.03648
}

Semantic roles & 50–950 ramp

primary

#173564

secondary

#9A763C

accent

#A642E6

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #173564

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

Preview Lab → · Contrast checker → · Palette generator →