#171563#171563

#171563 is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.5% C 0.131 H 274.0°. Best body text is #FFFFFF at 15.86:1 contrast (WCAG AA passes).

Color values

HEX	#171563
RGB	rgb(23, 21, 99)
HSL	hsl(242, 65%, 24%)
HSV	hsv(242, 79%, 39%)
CMYK	cmyk(76.8%, 78.8%, 0%, 61.2%)
CIE-LAB	lab(13.35, 29.26, -45.19)
CIE-LCH	lch(13.35, 53.84, 302.92°)
OKLab	oklab(26.55% 0.009 -0.1307)
OKLCH	oklch(26.55% 0.131 274)
XYZ	xyz(2.8729, 1.6191, 11.9631)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171563 #616315

analogous

#153A63 #171563 #3E1563

triadic

#171563 #631715 #156317

tetradic

#171563 #63153A #616315 #15633E

square

#171563 #63153A #616315 #15633E

split-complementary

#171563 #633E15 #3A6315

monochromatic

#060519 #0B0A31 #171563 #232095 #2E2AC8

Accessibility & contrast

On white

15.86

#171563 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#171563 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171563

15.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171563	#FFFFFF	#000000	##FFFFFF
##171563	1.00	15.86	1.32	15.86
#FFFFFF	15.86	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002665

Deuteranopia (green-blind)

#001F62

Tritanopia (blue-blind)

#002C3B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171563;
/* rgb */ color: rgb(23, 21, 99);
/* oklch */ color: oklch(26.5% 0.131 274.0);

Tailwind

colors: {
  custom: {
    50: '#625390',
    500: '#171563',
    950: '#000000',
  },
}

SCSS

$custom: #171563;
$custom-light: #625390;
$custom-dark: #000000;

JSON

{
  "hex": "#171563",
  "rgb": {
    "r": 23,
    "g": 21,
    "b": 99
  },
  "hsl": {
    "h": 241.538,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.26549,
    "c": 0.13104,
    "h": 274
  },
  "luminance": 0.01619
}

Semantic roles & 50–950 ramp

primary

#171563

secondary

#989A3A

accent

#E840E4

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #171563

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

Preview Lab → · Contrast checker → · Palette generator →