#171D6D#171D6D

#171D6D is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.0% C 0.136 H 271.2°. Best body text is #FFFFFF at 14.65:1 contrast (WCAG AA passes).

Color values

HEX	#171D6D
RGB	rgb(23, 29, 109)
HSL	hsl(236, 65%, 26%)
HSV	hsv(236, 79%, 43%)
CMYK	cmyk(78.9%, 73.4%, 0%, 57.3%)
CIE-LAB	lab(16.33, 27.82, -46.85)
CIE-LCH	lch(16.33, 54.49, 300.70°)
OKLab	oklab(29.02% 0.0028 -0.1356)
OKLCH	oklch(29.02% 0.136 271.2)
XYZ	xyz(3.5521, 2.1646, 14.6956)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D6D #6D6717

analogous

#17486D #171D6D #3C176D

triadic

#171D6D #6D171D #1D6D17

tetradic

#171D6D #6D1748 #6D6717 #176D3C

square

#171D6D #6D1748 #6D6717 #176D3C

split-complementary

#171D6D #6D3C17 #486D17

monochromatic

#050719 #0C103A #171D6D #222AA0 #2C38D2

Accessibility & contrast

On white

14.65

#171D6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#171D6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D6D

14.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D6D	#FFFFFF	#000000	##FFFFFF
##171D6D	1.00	14.65	1.43	14.65
#FFFFFF	14.65	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6F

Deuteranopia (green-blind)

#00246C

Tritanopia (blue-blind)

#003342

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #171d6d;
/* rgb */ color: rgb(23, 29, 109);
/* oklch */ color: oklch(29.0% 0.136 271.2);

Tailwind

colors: {
  custom: {
    50: '#645998',
    500: '#171d6d',
    950: '#000000',
  },
}

SCSS

$custom: #171d6d;
$custom-light: #645998;
$custom-dark: #000000;

JSON

{
  "hex": "#171d6d",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 109
  },
  "hsl": {
    "h": 235.814,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.29016,
    "c": 0.13562,
    "h": 271.2
  },
  "luminance": 0.02165
}

Semantic roles & 50–950 ramp

primary

#171D6D

secondary

#A39C3D

accent

#DC40E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #171D6D

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

Preview Lab → · Contrast checker → · Palette generator →