#171A6A#171A6A

#171A6A is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.2% C 0.135 H 272.1°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#171A6A
RGB	rgb(23, 26, 106)
HSL	hsl(238, 64%, 25%)
HSV	hsv(238, 78%, 42%)
CMYK	cmyk(78.3%, 75.5%, 0%, 58.4%)
CIE-LAB	lab(15.28, 28.66, -46.62)
CIE-LCH	lch(15.28, 54.72, 301.59°)
OKLab	oklab(28.17% 0.005 -0.1349)
OKLCH	oklch(28.17% 0.135 272.1)
XYZ	xyz(3.3234, 1.9612, 13.8363)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A6A #6A6717

analogous

#17446A #171A6A #3D176A

triadic

#171A6A #6A171A #1A6A17

tetradic

#171A6A #6A1744 #6A6717 #176A3D

square

#171A6A #6A1744 #6A6717 #176A3D

split-complementary

#171A6A #6A3D17 #446A17

monochromatic

#050619 #0C0E38 #171A6A #22269C #2D33CF

Accessibility & contrast

On white

15.08

#171A6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#171A6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A6A

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A6A	#FFFFFF	#000000	##FFFFFF
##171A6A	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6C

Deuteranopia (green-blind)

#002269

Tritanopia (blue-blind)

#003140

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #171a6a;
/* rgb */ color: rgb(23, 26, 106);
/* oklch */ color: oklch(28.2% 0.135 272.1);

Tailwind

colors: {
  custom: {
    50: '#635796',
    500: '#171a6a',
    950: '#000000',
  },
}

SCSS

$custom: #171a6a;
$custom-light: #635796;
$custom-dark: #000000;

JSON

{
  "hex": "#171a6a",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 106
  },
  "hsl": {
    "h": 237.831,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28166,
    "c": 0.13498,
    "h": 272.1
  },
  "luminance": 0.01962
}

Semantic roles & 50–950 ramp

primary

#171A6A

secondary

#A09D3D

accent

#E140E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171A6A

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

Preview Lab → · Contrast checker → · Palette generator →