#173363#173363

#173363 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 32.8% C 0.091 H 260.4°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#173363
RGB	rgb(23, 51, 99)
HSL	hsl(218, 62%, 24%)
HSV	hsv(218, 77%, 39%)
CMYK	cmyk(76.8%, 48.5%, 0%, 61.2%)
CIE-LAB	lab(21.76, 8.02, -31.49)
CIE-LCH	lch(21.76, 32.49, 284.29°)
OKLab	oklab(32.81% -0.0152 -0.0902)
OKLCH	oklch(32.81% 0.091 260.4)
XYZ	xyz(3.7885, 3.4503, 12.2683)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173363 #634717

analogous

#175963 #173363 #211763

triadic

#173363 #631733 #336317

tetradic

#173363 #631759 #634717 #176321

square

#173363 #631759 #634717 #176321

split-complementary

#173363 #632117 #596317

monochromatic

#060D19 #0B1931 #173363 #234D95 #2E66C6

Accessibility & contrast

On white

12.42

#173363 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#173363 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173363

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173363	#FFFFFF	#000000	##FFFFFF
##173363	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3865

Deuteranopia (green-blind)

#0B3162

Tritanopia (blue-blind)

#003E46

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #173363;
/* rgb */ color: rgb(23, 51, 99);
/* oklch */ color: oklch(32.8% 0.091 260.4);

Tailwind

colors: {
  custom: {
    50: '#5f6a90',
    500: '#173363',
    950: '#000000',
  },
}

SCSS

$custom: #173363;
$custom-light: #5f6a90;
$custom-dark: #000000;

JSON

{
  "hex": "#173363",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 99
  },
  "hsl": {
    "h": 217.895,
    "s": 62.295,
    "l": 23.922
  },
  "oklch": {
    "l": 0.32809,
    "c": 0.09148,
    "h": 260.4
  },
  "luminance": 0.03451
}

Semantic roles & 50–950 ramp

primary

#173363

secondary

#9A773C

accent

#A942E5

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #173363

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

Preview Lab → · Contrast checker → · Palette generator →