#171A68#171A68

#171A68 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.9% C 0.132 H 272.3°. Best body text is #FFFFFF at 15.17:1 contrast (WCAG AA passes).

Color values

HEX	#171A68
RGB	rgb(23, 26, 104)
HSL	hsl(238, 64%, 25%)
HSV	hsv(238, 78%, 41%)
CMYK	cmyk(77.9%, 75%, 0%, 59.2%)
CIE-LAB	lab(15.06, 27.91, -45.67)
CIE-LCH	lch(15.06, 53.52, 301.43°)
OKLab	oklab(27.94% 0.0053 -0.1321)
OKLCH	oklch(27.94% 0.132 272.3)
XYZ	xyz(3.2206, 1.9201, 13.2949)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A68 #686517

analogous

#174268 #171A68 #3D1768

triadic

#171A68 #68171A #1A6817

tetradic

#171A68 #681742 #686517 #17683D

square

#171A68 #681742 #686517 #17683D

split-complementary

#171A68 #683D17 #426817

monochromatic

#060619 #0C0D36 #171A68 #22279A #2D33CC

Accessibility & contrast

On white

15.17

#171A68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#171A68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A68

15.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A68	#FFFFFF	#000000	##FFFFFF
##171A68	1.00	15.17	1.38	15.17
#FFFFFF	15.17	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6A

Deuteranopia (green-blind)

#002267

Tritanopia (blue-blind)

#00303F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #171a68;
/* rgb */ color: rgb(23, 26, 104);
/* oklch */ color: oklch(27.9% 0.132 272.3);

Tailwind

colors: {
  custom: {
    50: '#635794',
    500: '#171a68',
    950: '#000000',
  },
}

SCSS

$custom: #171a68;
$custom-light: #635794;
$custom-dark: #000000;

JSON

{
  "hex": "#171a68",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 104
  },
  "hsl": {
    "h": 237.778,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.27942,
    "c": 0.13224,
    "h": 272.3
  },
  "luminance": 0.0192
}

Semantic roles & 50–950 ramp

primary

#171A68

secondary

#9E9B3D

accent

#E141E7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171A68

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

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