#171864#171864

#171864 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.2% C 0.129 H 273.2°. Best body text is #FFFFFF at 15.54:1 contrast (WCAG AA passes).

Color values

HEX	#171864
RGB	rgb(23, 24, 100)
HSL	hsl(239, 63%, 24%)
HSV	hsv(239, 77%, 39%)
CMYK	cmyk(77%, 76%, 0%, 60.8%)
CIE-LAB	lab(14.15, 27.71, -44.54)
CIE-LCH	lch(14.15, 52.46, 301.89°)
OKLab	oklab(27.15% 0.0071 -0.1288)
OKLCH	oklch(27.15% 0.129 273.2)
XYZ	xyz(2.9795, 1.7552, 12.2359)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171864 #646317

analogous

#173F64 #171864 #3D1764

triadic

#171864 #641718 #186417

tetradic

#171864 #64173F #646317 #17643D

square

#171864 #64173F #646317 #17643D

split-complementary

#171864 #643D17 #3F6417

monochromatic

#060619 #0C0C32 #171864 #222496 #2E30C8

Accessibility & contrast

On white

15.54

#171864 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#171864 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171864

15.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171864	#FFFFFF	#000000	##FFFFFF
##171864	1.00	15.54	1.35	15.54
#FFFFFF	15.54	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002866

Deuteranopia (green-blind)

#002063

Tritanopia (blue-blind)

#002D3C

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #171864;
/* rgb */ color: rgb(23, 24, 100);
/* oklch */ color: oklch(27.2% 0.129 273.2);

Tailwind

colors: {
  custom: {
    50: '#625591',
    500: '#171864',
    950: '#000000',
  },
}

SCSS

$custom: #171864;
$custom-light: #625591;
$custom-dark: #000000;

JSON

{
  "hex": "#171864",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 100
  },
  "hsl": {
    "h": 239.221,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.27153,
    "c": 0.12903,
    "h": 273.2
  },
  "luminance": 0.01756
}

Semantic roles & 50–950 ramp

primary

#171864

secondary

#9A993C

accent

#E442E6

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171864

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

Preview Lab → · Contrast checker → · Palette generator →