#171568#171568

#171568 is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.1% C 0.138 H 273.3°. Best body text is #FFFFFF at 15.63:1 contrast (WCAG AA passes).

Color values

HEX	#171568
RGB	rgb(23, 21, 104)
HSL	hsl(241, 66%, 25%)
HSV	hsv(241, 80%, 41%)
CMYK	cmyk(77.9%, 79.8%, 0%, 59.2%)
CIE-LAB	lab(13.93, 31.08, -47.53)
CIE-LCH	lch(13.93, 56.79, 303.18°)
OKLab	oklab(27.14% 0.008 -0.1375)
OKLCH	oklch(27.14% 0.138 273.3)
XYZ	xyz(3.1194, 1.7176, 13.2612)
Luminance	0.0172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171568 #666815

analogous

#153D68 #171568 #411568

triadic

#171568 #681715 #156817

tetradic

#171568 #68153D #666815 #156841

square

#171568 #68153D #666815 #156841

split-complementary

#171568 #684115 #3D6815

monochromatic

#060519 #0C0B35 #171568 #221F9B #2E2ACE

Accessibility & contrast

On white

15.63

#171568 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#171568 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171568

15.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171568	#FFFFFF	#000000	##FFFFFF
##171568	1.00	15.63	1.34	15.63
#FFFFFF	15.63	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00276A

Deuteranopia (green-blind)

#001F67

Tritanopia (blue-blind)

#002D3D

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #171568;
/* rgb */ color: rgb(23, 21, 104);
/* oklch */ color: oklch(27.1% 0.138 273.3);

Tailwind

colors: {
  custom: {
    50: '#635494',
    500: '#171568',
    950: '#000000',
  },
}

SCSS

$custom: #171568;
$custom-light: #635494;
$custom-dark: #000000;

JSON

{
  "hex": "#171568",
  "rgb": {
    "r": 23,
    "g": 21,
    "b": 104
  },
  "hsl": {
    "h": 241.446,
    "s": 66.4,
    "l": 24.51
  },
  "oklch": {
    "l": 0.27136,
    "c": 0.13777,
    "h": 273.3
  },
  "luminance": 0.01718
}

Semantic roles & 50–950 ramp

primary

#171568

secondary

#9C9F3A

accent

#E93EE5

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#06020D

muted

#7A787E

Preview Lab

Preview with #171568

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

Preview Lab → · Contrast checker → · Palette generator →