#173288#173288

#173288 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.8% C 0.147 H 265.7°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#173288
RGB	rgb(23, 50, 136)
HSL	hsl(226, 71%, 31%)
HSV	hsv(226, 83%, 53%)
CMYK	cmyk(83.1%, 63.2%, 0%, 46.7%)
CIE-LAB	lab(24.45, 24.02, -50.72)
CIE-LCH	lch(24.45, 56.13, 295.34°)
OKLab	oklab(35.78% -0.0111 -0.1467)
OKLCH	oklch(35.78% 0.147 265.7)
XYZ	xyz(5.9363, 4.2402, 23.7934)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173288 #886D17

analogous

#176A88 #173288 #341788

triadic

#173288 #881732 #328817

tetradic

#173288 #88176A #886D17 #178834

square

#173288 #88176A #886D17 #178834

split-complementary

#173288 #883417 #6A8817

monochromatic

#050C1F #0E1F54 #173288 #2045BC #3B62DE

Accessibility & contrast

On white

11.36

#173288 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#173288 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173288

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173288	#FFFFFF	#000000	##FFFFFF
##173288	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408B

Deuteranopia (green-blind)

#003586

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173288;
/* rgb */ color: rgb(23, 50, 136);
/* oklch */ color: oklch(35.8% 0.147 265.7);

Tailwind

colors: {
  custom: {
    50: '#6969ac',
    500: '#173288',
    950: '#000000',
  },
}

SCSS

$custom: #173288;
$custom-light: #6969ac;
$custom-dark: #000000;

JSON

{
  "hex": "#173288",
  "rgb": {
    "r": 23,
    "g": 50,
    "b": 136
  },
  "hsl": {
    "h": 225.664,
    "s": 71.069,
    "l": 31.176
  },
  "oklch": {
    "l": 0.35779,
    "c": 0.14717,
    "h": 265.7
  },
  "luminance": 0.04241
}

Semantic roles & 50–950 ramp

primary

#173288

secondary

#BC9E3F

accent

#C33AEE

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #173288

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

Preview Lab → · Contrast checker → · Palette generator →