#171853#171853

#171853 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.105 H 275.2°. Best body text is #FFFFFF at 16.25:1 contrast (WCAG AA passes).

Color values

HEX	#171853
RGB	rgb(23, 24, 83)
HSL	hsl(239, 57%, 21%)
HSV	hsv(239, 72%, 33%)
CMYK	cmyk(72.3%, 71.1%, 0%, 67.5%)
CIE-LAB	lab(12.35, 21.17, -36.08)
CIE-LCH	lch(12.35, 41.83, 300.41°)
OKLab	oklab(25.31% 0.0095 -0.1041)
OKLCH	oklch(25.31% 0.105 275.2)
XYZ	xyz(2.2408, 1.4598, 8.3456)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171853 #535217

analogous

#173653 #171853 #341753

triadic

#171853 #531718 #185317

tetradic

#171853 #531736 #535217 #175334

square

#171853 #531736 #535217 #175334

split-complementary

#171853 #533417 #365317

monochromatic

#070718 #0A0A23 #171853 #242683 #3234B3

Accessibility & contrast

On white

16.25

#171853 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#171853 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171853

16.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171853	#FFFFFF	#000000	##FFFFFF
##171853	1.00	16.25	1.29	16.25
#FFFFFF	16.25	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002355

Deuteranopia (green-blind)

#001E52

Tritanopia (blue-blind)

#002733

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #171853;
/* rgb */ color: rgb(23, 24, 83);
/* oklch */ color: oklch(25.3% 0.105 275.2);

Tailwind

colors: {
  custom: {
    50: '#5d5584',
    500: '#171853',
    950: '#000000',
  },
}

SCSS

$custom: #171853;
$custom-light: #5d5584;
$custom-dark: #000000;

JSON

{
  "hex": "#171853",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 83
  },
  "hsl": {
    "h": 239,
    "s": 56.604,
    "l": 20.784
  },
  "oklch": {
    "l": 0.2531,
    "c": 0.10453,
    "h": 275.2
  },
  "luminance": 0.0146
}

Semantic roles & 50–950 ramp

primary

#171853

secondary

#8A893C

accent

#DD48E0

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #171853

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

Preview Lab → · Contrast checker → · Palette generator →