#171D68#171D68

#171D68 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.5% C 0.129 H 271.5°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#171D68
RGB	rgb(23, 29, 104)
HSL	hsl(236, 64%, 25%)
HSV	hsv(236, 78%, 41%)
CMYK	cmyk(77.9%, 72.1%, 0%, 59.2%)
CIE-LAB	lab(15.80, 25.90, -44.45)
CIE-LCH	lch(15.80, 51.45, 300.22°)
OKLab	oklab(28.47% 0.0034 -0.1286)
OKLCH	oklch(28.47% 0.129 271.5)
XYZ	xyz(3.2906, 2.0600, 13.3182)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D68 #686217

analogous

#174568 #171D68 #3A1768

triadic

#171D68 #68171D #1D6817

tetradic

#171D68 #681745 #686217 #17683A

square

#171D68 #681745 #686217 #17683A

split-complementary

#171D68 #683A17 #456817

monochromatic

#060719 #0C0F36 #171D68 #222B9A #2D39CC

Accessibility & contrast

On white

14.87

#171D68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171D68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D68

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D68	#FFFFFF	#000000	##FFFFFF
##171D68	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6A

Deuteranopia (green-blind)

#002467

Tritanopia (blue-blind)

#003140

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171d68;
/* rgb */ color: rgb(23, 29, 104);
/* oklch */ color: oklch(28.5% 0.129 271.5);

Tailwind

colors: {
  custom: {
    50: '#625994',
    500: '#171d68',
    950: '#000000',
  },
}

SCSS

$custom: #171d68;
$custom-light: #625994;
$custom-dark: #000000;

JSON

{
  "hex": "#171d68",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 104
  },
  "hsl": {
    "h": 235.556,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.28473,
    "c": 0.12864,
    "h": 271.5
  },
  "luminance": 0.0206
}

Semantic roles & 50–950 ramp

primary

#171D68

secondary

#9E973D

accent

#DB41E7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171D68

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

Preview Lab → · Contrast checker → · Palette generator →