#171370#171370

#171370 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.8% C 0.150 H 272.6°. Best body text is #FFFFFF at 15.40:1 contrast (WCAG AA passes).

Color values

HEX	#171370
RGB	rgb(23, 19, 112)
HSL	hsl(243, 71%, 26%)
HSV	hsv(243, 83%, 44%)
CMYK	cmyk(79.5%, 83%, 0%, 56.1%)
CIE-LAB	lab(14.50, 35.05, -51.83)
CIE-LCH	lch(14.50, 62.56, 304.07°)
OKLab	oklab(27.82% 0.0069 -0.15)
OKLCH	oklch(27.82% 0.15 272.6)
XYZ	xyz(3.5099, 1.8174, 15.4919)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171370 #6C7013

analogous

#133D70 #171370 #451370

triadic

#171370 #701713 #137017

tetradic

#171370 #70133D #6C7013 #137045

square

#171370 #70133D #6C7013 #137045

split-complementary

#171370 #704513 #3D7013

monochromatic

#05041A #0C0A3C #171370 #221CA4 #2C25D9

Accessibility & contrast

On white

15.40

#171370 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#171370 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171370

15.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171370	#FFFFFF	#000000	##FFFFFF
##171370	1.00	15.40	1.36	15.40
#FFFFFF	15.40	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002973

Deuteranopia (green-blind)

#00206E

Tritanopia (blue-blind)

#003042

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #171370;
/* rgb */ color: rgb(23, 19, 112);
/* oklch */ color: oklch(27.8% 0.150 272.6);

Tailwind

colors: {
  custom: {
    50: '#66539a',
    500: '#171370',
    950: '#000000',
  },
}

SCSS

$custom: #171370;
$custom-light: #66539a;
$custom-dark: #000000;

JSON

{
  "hex": "#171370",
  "rgb": {
    "r": 23,
    "g": 19,
    "b": 112
  },
  "hsl": {
    "h": 242.581,
    "s": 70.992,
    "l": 25.686
  },
  "oklch": {
    "l": 0.2782,
    "c": 0.15014,
    "h": 272.6
  },
  "luminance": 0.01818
}

Semantic roles & 50–950 ramp

primary

#171370

secondary

#A2A738

accent

#EE3AE6

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #171370

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

Preview Lab → · Contrast checker → · Palette generator →