#173365#173365

#173365 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.0% C 0.095 H 261.0°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#173365
RGB	rgb(23, 51, 101)
HSL	hsl(218, 63%, 24%)
HSV	hsv(218, 77%, 40%)
CMYK	cmyk(77.2%, 49.5%, 0%, 60.4%)
CIE-LAB	lab(21.90, 8.86, -32.57)
CIE-LCH	lch(21.90, 33.75, 285.22°)
OKLab	oklab(32.96% -0.0148 -0.0934)
OKLCH	oklch(32.96% 0.095 261)
XYZ	xyz(3.8853, 3.4890, 12.7781)
Luminance	0.0349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173365 #654917

analogous

#175A65 #173365 #221765

triadic

#173365 #651733 #336517

tetradic

#173365 #65175A #654917 #176522

square

#173365 #65175A #654917 #176522

split-complementary

#173365 #652217 #5A6517

monochromatic

#060D19 #0C1A33 #173365 #224C97 #2E65C9

Accessibility & contrast

On white

12.37

#173365 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#173365 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173365

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173365	#FFFFFF	#000000	##FFFFFF
##173365	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193867

Deuteranopia (green-blind)

#063164

Tritanopia (blue-blind)

#003F47

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #173365;
/* rgb */ color: rgb(23, 51, 101);
/* oklch */ color: oklch(33.0% 0.095 261.0);

Tailwind

colors: {
  custom: {
    50: '#606a91',
    500: '#173365',
    950: '#000000',
  },
}

SCSS

$custom: #173365;
$custom-light: #606a91;
$custom-dark: #000000;

JSON

{
  "hex": "#173365",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 101
  },
  "hsl": {
    "h": 218.462,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.32963,
    "c": 0.09454,
    "h": 261
  },
  "luminance": 0.03489
}

Semantic roles & 50–950 ramp

primary

#173365

secondary

#9B793C

accent

#AB42E6

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060D

muted

#7A7A7D

Preview Lab

Preview with #173365

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

Preview Lab → · Contrast checker → · Palette generator →