#171C68#171C68

#171C68 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.3% C 0.130 H 271.8°. Best body text is #FFFFFF at 14.97:1 contrast (WCAG AA passes).

Color values

HEX	#171C68
RGB	rgb(23, 28, 104)
HSL	hsl(236, 64%, 25%)
HSV	hsv(236, 78%, 41%)
CMYK	cmyk(77.9%, 73.1%, 0%, 59.2%)
CIE-LAB	lab(15.55, 26.57, -44.86)
CIE-LCH	lch(15.55, 52.14, 300.64°)
OKLab	oklab(28.29% 0.0041 -0.1298)
OKLCH	oklch(28.29% 0.13 271.8)
XYZ	xyz(3.2664, 2.0118, 13.3102)
Luminance	0.0201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171C68 #686317

analogous

#174568 #171C68 #3A1768

triadic

#171C68 #68171C #1C6817

tetradic

#171C68 #681745 #686317 #17683A

square

#171C68 #681745 #686317 #17683A

split-complementary

#171C68 #683A17 #456817

monochromatic

#060719 #0C0F36 #171C68 #22299A #2D37CC

Accessibility & contrast

On white

14.97

#171C68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#171C68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171C68

14.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171C68	#FFFFFF	#000000	##FFFFFF
##171C68	1.00	14.97	1.40	14.97
#FFFFFF	14.97	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6A

Deuteranopia (green-blind)

#002367

Tritanopia (blue-blind)

#00313F

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171c68;
/* rgb */ color: rgb(23, 28, 104);
/* oklch */ color: oklch(28.3% 0.130 271.8);

Tailwind

colors: {
  custom: {
    50: '#635894',
    500: '#171c68',
    950: '#000000',
  },
}

SCSS

$custom: #171c68;
$custom-light: #635894;
$custom-dark: #000000;

JSON

{
  "hex": "#171c68",
  "rgb": {
    "r": 23,
    "g": 28,
    "b": 104
  },
  "hsl": {
    "h": 236.296,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.28293,
    "c": 0.12985,
    "h": 271.8
  },
  "luminance": 0.02012
}

Semantic roles & 50–950 ramp

primary

#171C68

secondary

#9E983D

accent

#DD41E7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171C68

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

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