#171E47#171E47

#171E47 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.5% C 0.077 H 272.5°. Best body text is #FFFFFF at 15.99:1 contrast (WCAG AA passes).

Color values

HEX	#171E47
RGB	rgb(23, 30, 71)
HSL	hsl(231, 51%, 18%)
HSV	hsv(231, 68%, 28%)
CMYK	cmyk(67.6%, 57.7%, 0%, 72.2%)
CIE-LAB	lab(13.02, 11.91, -26.74)
CIE-LCH	lch(13.02, 29.27, 294.00°)
OKLab	oklab(25.47% 0.0034 -0.0766)
OKLCH	oklch(25.47% 0.077 272.5)
XYZ	xyz(1.9546, 1.5655, 6.1592)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E47 #474017

analogous

#173647 #171E47 #281747

triadic

#171E47 #47171E #1E4717

tetradic

#171E47 #471736 #474017 #174728

square

#171E47 #471736 #474017 #174728

split-complementary

#171E47 #472817 #364717

monochromatic

#070A17 #080A19 #171E47 #263275 #3545A3

Accessibility & contrast

On white

15.99

#171E47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#171E47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E47

15.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E47	#FFFFFF	#000000	##FFFFFF
##171E47	1.00	15.99	1.31	15.99
#FFFFFF	15.99	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072448

Deuteranopia (green-blind)

#002046

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171e47;
/* rgb */ color: rgb(23, 30, 71);
/* oklch */ color: oklch(25.5% 0.077 272.5);

Tailwind

colors: {
  custom: {
    50: '#5a597a',
    500: '#171e47',
    950: '#000000',
  },
}

SCSS

$custom: #171e47;
$custom-light: #5a597a;
$custom-dark: #000000;

JSON

{
  "hex": "#171e47",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 71
  },
  "hsl": {
    "h": 231.25,
    "s": 51.064,
    "l": 18.431
  },
  "oklch": {
    "l": 0.25469,
    "c": 0.07667,
    "h": 272.5
  },
  "luminance": 0.01566
}

Semantic roles & 50–950 ramp

primary

#171E47

secondary

#7E743C

accent

#C64DDB

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #171E47

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

Preview Lab → · Contrast checker → · Palette generator →