#173590#173590

#173590 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.154 H 265.3°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#173590
RGB	rgb(23, 53, 144)
HSL	hsl(225, 72%, 33%)
HSV	hsv(225, 84%, 56%)
CMYK	cmyk(84%, 63.2%, 0%, 43.5%)
CIE-LAB	lab(25.98, 25.15, -53.18)
CIE-LCH	lch(25.98, 58.83, 295.31°)
OKLab	oklab(37.14% -0.0128 -0.1539)
OKLCH	oklch(37.14% 0.154 265.3)
XYZ	xyz(6.6587, 4.7412, 26.9443)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173590 #907217

analogous

#177190 #173590 #351790

triadic

#173590 #901735 #359017

tetradic

#173590 #901771 #907217 #179035

square

#173590 #901771 #907217 #179035

split-complementary

#173590 #903517 #719017

monochromatic

#060E26 #0F225B #173590 #1F48C5 #4168E1

Accessibility & contrast

On white

10.78

#173590 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#173590 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173590

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173590	#FFFFFF	#000000	##FFFFFF
##173590	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004393

Deuteranopia (green-blind)

#00388E

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #173590;
/* rgb */ color: rgb(23, 53, 144);
/* oklch */ color: oklch(37.1% 0.154 265.3);

Tailwind

colors: {
  custom: {
    50: '#6b6bb1',
    500: '#173590',
    950: '#000000',
  },
}

SCSS

$custom: #173590;
$custom-light: #6b6bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#173590",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 144
  },
  "hsl": {
    "h": 225.124,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.37142,
    "c": 0.15443,
    "h": 265.3
  },
  "luminance": 0.04742
}

Semantic roles & 50–950 ramp

primary

#173590

secondary

#C1A242

accent

#C239EF

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #173590

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

Preview Lab → · Contrast checker → · Palette generator →