#171779#171779

#171779 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.158 H 271.2°. Best body text is #FFFFFF at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#171779
RGB	rgb(23, 23, 121)
HSL	hsl(240, 68%, 28%)
HSV	hsv(240, 81%, 47%)
CMYK	cmyk(81%, 81%, 0%, 52.5%)
CIE-LAB	lab(16.38, 35.93, -54.52)
CIE-LCH	lch(16.38, 65.29, 303.38°)
OKLab	oklab(29.46% 0.0034 -0.1578)
OKLCH	oklch(29.46% 0.158 271.2)
XYZ	xyz(4.1098, 2.1750, 18.2887)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171779 #797917

analogous

#174879 #171779 #481779

triadic

#171779 #791717 #177917

tetradic

#171779 #791748 #797917 #177948

square

#171779 #791748 #797917 #177948

split-complementary

#171779 #794817 #487917

monochromatic

#05051A #0D0D46 #171779 #2121AC #3232D8

Accessibility & contrast

On white

14.63

#171779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#171779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171779

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171779	#FFFFFF	#000000	##FFFFFF
##171779	1.00	14.63	1.44	14.63
#FFFFFF	14.63	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7C

Deuteranopia (green-blind)

#002477

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171779;
/* rgb */ color: rgb(23, 23, 121);
/* oklch */ color: oklch(29.5% 0.158 271.2);

Tailwind

colors: {
  custom: {
    50: '#6856a1',
    500: '#171779',
    950: '#000000',
  },
}

SCSS

$custom: #171779;
$custom-light: #6856a1;
$custom-dark: #000000;

JSON

{
  "hex": "#171779",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 121
  },
  "hsl": {
    "h": 240,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.2946,
    "c": 0.15789,
    "h": 271.2
  },
  "luminance": 0.02175
}

Semantic roles & 50–950 ramp

primary

#171779

secondary

#AEAE3E

accent

#EB3DEB

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #171779

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

Preview Lab → · Contrast checker → · Palette generator →