#171C69#171C69

#171C69 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.131 H 271.7°. Best body text is #FFFFFF at 14.93:1 contrast (WCAG AA passes).

Color values

HEX	#171C69
RGB	rgb(23, 28, 105)
HSL	hsl(236, 64%, 25%)
HSV	hsv(236, 78%, 41%)
CMYK	cmyk(78.1%, 73.3%, 0%, 58.8%)
CIE-LAB	lab(15.66, 26.96, -45.35)
CIE-LCH	lch(15.66, 52.75, 300.73°)
OKLab	oklab(28.4% 0.0039 -0.1312)
OKLCH	oklch(28.4% 0.131 271.7)
XYZ	xyz(3.3175, 2.0322, 13.5793)
Luminance	0.0203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171C69 #696417

analogous

#174569 #171C69 #3B1769

triadic

#171C69 #69171C #1C6917

tetradic

#171C69 #691745 #696417 #17693B

square

#171C69 #691745 #696417 #17693B

split-complementary

#171C69 #693B17 #456917

monochromatic

#050719 #0C0F37 #171C69 #22299B #2D37CD

Accessibility & contrast

On white

14.93

#171C69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171C69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171C69

14.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171C69	#FFFFFF	#000000	##FFFFFF
##171C69	1.00	14.93	1.41	14.93
#FFFFFF	14.93	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6B

Deuteranopia (green-blind)

#002368

Tritanopia (blue-blind)

#003140

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171c69;
/* rgb */ color: rgb(23, 28, 105);
/* oklch */ color: oklch(28.4% 0.131 271.7);

Tailwind

colors: {
  custom: {
    50: '#635895',
    500: '#171c69',
    950: '#000000',
  },
}

SCSS

$custom: #171c69;
$custom-light: #635895;
$custom-dark: #000000;

JSON

{
  "hex": "#171c69",
  "rgb": {
    "r": 23,
    "g": 28,
    "b": 105
  },
  "hsl": {
    "h": 236.341,
    "s": 64.063,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28402,
    "c": 0.13125,
    "h": 271.7
  },
  "luminance": 0.02033
}

Semantic roles & 50–950 ramp

primary

#171C69

secondary

#9F993D

accent

#DD41E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171C69

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

Preview Lab → · Contrast checker → · Palette generator →