#171E6F#171E6F

#171E6F is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.4% C 0.137 H 270.8°. Best body text is #FFFFFF at 14.47:1 contrast (WCAG AA passes).

Color values

HEX	#171E6F
RGB	rgb(23, 30, 111)
HSL	hsl(235, 66%, 26%)
HSV	hsv(235, 79%, 44%)
CMYK	cmyk(79.3%, 73%, 0%, 56.5%)
CIE-LAB	lab(16.79, 27.92, -47.40)
CIE-LCH	lch(16.79, 55.01, 300.50°)
OKLab	oklab(29.41% 0.002 -0.1372)
OKLCH	oklch(29.41% 0.137 270.8)
XYZ	xyz(3.6859, 2.2580, 15.2774)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E6F #6F6817

analogous

#174A6F #171E6F #3C176F

triadic

#171E6F #6F171E #1E6F17

tetradic

#171E6F #6F174A #6F6817 #176F3C

square

#171E6F #6F174A #6F6817 #176F3C

split-complementary

#171E6F #6F3C17 #4A6F17

monochromatic

#050719 #0C103C #171E6F #222CA2 #2D3AD3

Accessibility & contrast

On white

14.47

#171E6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#171E6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E6F

14.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E6F	#FFFFFF	#000000	##FFFFFF
##171E6F	1.00	14.47	1.45	14.47
#FFFFFF	14.47	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E71

Deuteranopia (green-blind)

#00256E

Tritanopia (blue-blind)

#003444

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171e6f;
/* rgb */ color: rgb(23, 30, 111);
/* oklch */ color: oklch(29.4% 0.137 270.8);

Tailwind

colors: {
  custom: {
    50: '#645a99',
    500: '#171e6f',
    950: '#000000',
  },
}

SCSS

$custom: #171e6f;
$custom-light: #645a99;
$custom-dark: #000000;

JSON

{
  "hex": "#171e6f",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 111
  },
  "hsl": {
    "h": 235.227,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.29411,
    "c": 0.13719,
    "h": 270.8
  },
  "luminance": 0.02258
}

Semantic roles & 50–950 ramp

primary

#171E6F

secondary

#A59D3D

accent

#DB3FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #171E6F

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

Preview Lab → · Contrast checker → · Palette generator →