#173586#173586

#173586 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.141 H 264.7°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#173586
RGB	rgb(23, 53, 134)
HSL	hsl(224, 71%, 31%)
HSV	hsv(224, 83%, 53%)
CMYK	cmyk(82.8%, 60.4%, 0%, 47.5%)
CIE-LAB	lab(25.10, 21.12, -48.41)
CIE-LCH	lch(25.10, 52.81, 293.57°)
OKLab	oklab(36.21% -0.013 -0.1399)
OKLCH	oklch(36.21% 0.141 264.7)
XYZ	xyz(5.9280, 4.4489, 23.0959)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173586 #866817

analogous

#176C86 #173586 #301786

triadic

#173586 #861735 #358617

tetradic

#173586 #86176C #866817 #178630

square

#173586 #86176C #866817 #178630

split-complementary

#173586 #863017 #6C8617

monochromatic

#050C1E #0E2052 #173586 #204ABA #3A66DD

Accessibility & contrast

On white

11.11

#173586 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#173586 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173586

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173586	#FFFFFF	#000000	##FFFFFF
##173586	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004189

Deuteranopia (green-blind)

#003784

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173586;
/* rgb */ color: rgb(23, 53, 134);
/* oklch */ color: oklch(36.2% 0.141 264.7);

Tailwind

colors: {
  custom: {
    50: '#696baa',
    500: '#173586',
    950: '#000000',
  },
}

SCSS

$custom: #173586;
$custom-light: #696baa;
$custom-dark: #000000;

JSON

{
  "hex": "#173586",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 134
  },
  "hsl": {
    "h": 223.784,
    "s": 70.701,
    "l": 30.784
  },
  "oklch": {
    "l": 0.36211,
    "c": 0.14052,
    "h": 264.7
  },
  "luminance": 0.0445
}

Semantic roles & 50–950 ramp

primary

#173586

secondary

#BA993F

accent

#BD3AED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #173586

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

Preview Lab → · Contrast checker → · Palette generator →