#171373#171373

#171373 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.2% C 0.154 H 272.3°. Best body text is #FFFFFF at 15.25:1 contrast (WCAG AA passes).

Color values

HEX	#171373
RGB	rgb(23, 19, 115)
HSL	hsl(243, 72%, 26%)
HSV	hsv(243, 83%, 45%)
CMYK	cmyk(80%, 83.5%, 0%, 54.9%)
CIE-LAB	lab(14.87, 36.07, -53.15)
CIE-LCH	lch(14.87, 64.24, 304.16°)
OKLab	oklab(28.19% 0.0062 -0.1538)
OKLCH	oklch(28.19% 0.154 272.3)
XYZ	xyz(3.6797, 1.8853, 16.3863)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171373 #6F7313

analogous

#133F73 #171373 #471373

triadic

#171373 #731713 #137317

tetradic

#171373 #73133F #6F7313 #137347

square

#171373 #73133F #6F7313 #137347

split-complementary

#171373 #734713 #3F7313

monochromatic

#05041A #0C0A3E #171373 #221CA8 #2D25DB

Accessibility & contrast

On white

15.25

#171373 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#171373 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171373

15.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171373	#FFFFFF	#000000	##FFFFFF
##171373	1.00	15.25	1.38	15.25
#FFFFFF	15.25	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A76

Deuteranopia (green-blind)

#002171

Tritanopia (blue-blind)

#003143

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #171373;
/* rgb */ color: rgb(23, 19, 115);
/* oklch */ color: oklch(28.2% 0.154 272.3);

Tailwind

colors: {
  custom: {
    50: '#67539c',
    500: '#171373',
    950: '#000000',
  },
}

SCSS

$custom: #171373;
$custom-light: #67539c;
$custom-dark: #000000;

JSON

{
  "hex": "#171373",
  "rgb": {
    "r": 23,
    "g": 19,
    "b": 115
  },
  "hsl": {
    "h": 242.5,
    "s": 71.642,
    "l": 26.275
  },
  "oklch": {
    "l": 0.2819,
    "c": 0.15394,
    "h": 272.3
  },
  "luminance": 0.01886
}

Semantic roles & 50–950 ramp

primary

#171373

secondary

#A5AA38

accent

#EE39E7

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #171373

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

Preview Lab → · Contrast checker → · Palette generator →