#171F68#171F68

#171F68 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 28.8% C 0.126 H 271.0°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#171F68
RGB	rgb(23, 31, 104)
HSL	hsl(234, 64%, 25%)
HSV	hsv(234, 78%, 41%)
CMYK	cmyk(77.9%, 70.2%, 0%, 59.2%)
CIE-LAB	lab(16.31, 24.52, -43.61)
CIE-LCH	lch(16.31, 50.03, 299.34°)
OKLab	oklab(28.85% 0.0021 -0.1261)
OKLCH	oklch(28.85% 0.126 271)
XYZ	xyz(3.3412, 2.1613, 13.3351)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F68 #686017

analogous

#174868 #171F68 #371768

triadic

#171F68 #68171F #1F6817

tetradic

#171F68 #681748 #686017 #176837

square

#171F68 #681748 #686017 #176837

split-complementary

#171F68 #683717 #486817

monochromatic

#060719 #0C1036 #171F68 #222E9A #2D3DCC

Accessibility & contrast

On white

14.66

#171F68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#171F68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F68

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F68	#FFFFFF	#000000	##FFFFFF
##171F68	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C6A

Deuteranopia (green-blind)

#002567

Tritanopia (blue-blind)

#003340

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #171f68;
/* rgb */ color: rgb(23, 31, 104);
/* oklch */ color: oklch(28.8% 0.126 271.0);

Tailwind

colors: {
  custom: {
    50: '#625a94',
    500: '#171f68',
    950: '#000000',
  },
}

SCSS

$custom: #171f68;
$custom-light: #625a94;
$custom-dark: #000000;

JSON

{
  "hex": "#171f68",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 104
  },
  "hsl": {
    "h": 234.074,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.28846,
    "c": 0.12614,
    "h": 271
  },
  "luminance": 0.02162
}

Semantic roles & 50–950 ramp

primary

#171F68

secondary

#9E953D

accent

#D641E7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06040D

muted

#7A797E

Preview Lab

Preview with #171F68

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

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