#173488#173488

#173488 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.145 H 265.1°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#173488
RGB	rgb(23, 52, 136)
HSL	hsl(225, 71%, 31%)
HSV	hsv(225, 83%, 53%)
CMYK	cmyk(83.1%, 61.8%, 0%, 46.7%)
CIE-LAB	lab(25.00, 22.63, -49.83)
CIE-LCH	lch(25.00, 54.73, 294.43°)
OKLab	oklab(36.19% -0.0123 -0.1441)
OKLCH	oklch(36.19% 0.145 265.1)
XYZ	xyz(6.0237, 4.4150, 23.8225)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173488 #886B17

analogous

#176C88 #173488 #321788

triadic

#173488 #881734 #348817

tetradic

#173488 #88176C #886B17 #178832

square

#173488 #88176C #886B17 #178832

split-complementary

#173488 #883217 #6C8817

monochromatic

#050C1F #0E2054 #173488 #2048BC #3B65DE

Accessibility & contrast

On white

11.15

#173488 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#173488 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173488

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173488	#FFFFFF	#000000	##FFFFFF
##173488	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418B

Deuteranopia (green-blind)

#003686

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #173488;
/* rgb */ color: rgb(23, 52, 136);
/* oklch */ color: oklch(36.2% 0.145 265.1);

Tailwind

colors: {
  custom: {
    50: '#696bab',
    500: '#173488',
    950: '#000000',
  },
}

SCSS

$custom: #173488;
$custom-light: #696bab;
$custom-dark: #000000;

JSON

{
  "hex": "#173488",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 136
  },
  "hsl": {
    "h": 224.602,
    "s": 71.069,
    "l": 31.176
  },
  "oklch": {
    "l": 0.36187,
    "c": 0.14462,
    "h": 265.1
  },
  "luminance": 0.04416
}

Semantic roles & 50–950 ramp

primary

#173488

secondary

#BC9C3F

accent

#C03AEE

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #173488

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

Preview Lab → · Contrast checker → · Palette generator →