#171552#171552

#171552 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.6% C 0.107 H 276.5°. Best body text is #FFFFFF at 16.59:1 contrast (WCAG AA passes).

Color values

HEX	#171552
RGB	rgb(23, 21, 82)
HSL	hsl(242, 59%, 20%)
HSV	hsv(242, 74%, 32%)
CMYK	cmyk(72%, 74.4%, 0%, 67.8%)
CIE-LAB	lab(11.47, 22.89, -36.84)
CIE-LCH	lch(11.47, 43.37, 301.85°)
OKLab	oklab(24.64% 0.0122 -0.1063)
OKLCH	oklch(24.64% 0.107 276.5)
XYZ	xyz(2.1440, 1.3275, 8.1243)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171552 #505215

analogous

#153252 #171552 #351552

triadic

#171552 #521715 #155217

tetradic

#171552 #521532 #505215 #155235

square

#171552 #521532 #505215 #155235

split-complementary

#171552 #523515 #325215

monochromatic

#070618 #090921 #171552 #252183 #322EB3

Accessibility & contrast

On white

16.59

#171552 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#171552 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171552

16.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171552	#FFFFFF	#000000	##FFFFFF
##171552	1.00	16.59	1.27	16.59
#FFFFFF	16.59	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002154

Deuteranopia (green-blind)

#001C51

Tritanopia (blue-blind)

#002531

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #171552;
/* rgb */ color: rgb(23, 21, 82);
/* oklch */ color: oklch(24.6% 0.107 276.5);

Tailwind

colors: {
  custom: {
    50: '#5d5283',
    500: '#171552',
    950: '#000000',
  },
}

SCSS

$custom: #171552;
$custom-light: #5d5283;
$custom-dark: #000000;

JSON

{
  "hex": "#171552",
  "rgb": {
    "r": 23,
    "g": 21,
    "b": 82
  },
  "hsl": {
    "h": 241.967,
    "s": 59.223,
    "l": 20.196
  },
  "oklch": {
    "l": 0.24639,
    "c": 0.10705,
    "h": 276.5
  },
  "luminance": 0.01328
}

Semantic roles & 50–950 ramp

primary

#171552

secondary

#878A39

accent

#E245DD

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #171552

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

Preview Lab → · Contrast checker → · Palette generator →