#173560#173560

#173560 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.1% C 0.084 H 257.7°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#173560
RGB	rgb(23, 53, 96)
HSL	hsl(215, 61%, 23%)
HSV	hsv(215, 76%, 38%)
CMYK	cmyk(76%, 44.8%, 0%, 62.4%)
CIE-LAB	lab(22.20, 5.34, -28.82)
CIE-LCH	lch(22.20, 29.32, 280.50°)
OKLab	oklab(33.08% -0.0179 -0.0823)
OKLCH	oklch(33.08% 0.084 257.7)
XYZ	xyz(3.7370, 3.5725, 11.5567)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173560 #604217

analogous

#175960 #173560 #1D1760

triadic

#173560 #601735 #356017

tetradic

#173560 #601759 #604217 #17601D

square

#173560 #601759 #604217 #17601D

split-complementary

#173560 #601D17 #596017

monochromatic

#060E19 #0B1A2F #173560 #235091 #2F6CC3

Accessibility & contrast

On white

12.25

#173560 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#173560 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173560

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173560	#FFFFFF	#000000	##FFFFFF
##173560	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#203962

Deuteranopia (green-blind)

#14325F

Tritanopia (blue-blind)

#003F45

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173560;
/* rgb */ color: rgb(23, 53, 96);
/* oklch */ color: oklch(33.1% 0.084 257.7);

Tailwind

colors: {
  custom: {
    50: '#5f6b8d',
    500: '#173560',
    950: '#000000',
  },
}

SCSS

$custom: #173560;
$custom-light: #5f6b8d;
$custom-dark: #000000;

JSON

{
  "hex": "#173560",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 96
  },
  "hsl": {
    "h": 215.342,
    "s": 61.345,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33084,
    "c": 0.08426,
    "h": 257.7
  },
  "luminance": 0.03573
}

Semantic roles & 50–950 ramp

primary

#173560

secondary

#97713C

accent

#A243E4

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #173560

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

Preview Lab → · Contrast checker → · Palette generator →