#171A4D#171A4D

#171A4D is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.092 H 275.0°. Best body text is #FFFFFF at 16.26:1 contrast (WCAG AA passes).

Color values

HEX	#171A4D
RGB	rgb(23, 26, 77)
HSL	hsl(237, 54%, 20%)
HSV	hsv(237, 70%, 30%)
CMYK	cmyk(70.1%, 66.2%, 0%, 69.8%)
CIE-LAB	lab(12.33, 17.34, -32.00)
CIE-LCH	lch(12.33, 36.40, 298.45°)
OKLab	oklab(25.12% 0.008 -0.0921)
OKLCH	oklch(25.12% 0.092 275)
XYZ	xyz(2.0619, 1.4566, 7.1922)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A4D #4D4A17

analogous

#17354D #171A4D #2F174D

triadic

#171A4D #4D171A #1A4D17

tetradic

#171A4D #4D1735 #4D4A17 #174D2F

square

#171A4D #4D1735 #4D4A17 #174D2F

split-complementary

#171A4D #4D2F17 #354D17

monochromatic

#070818 #090A1E #171A4D #252A7C #333AAB

Accessibility & contrast

On white

16.26

#171A4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#171A4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A4D

16.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A4D	#FFFFFF	#000000	##FFFFFF
##171A4D	1.00	16.26	1.29	16.26
#FFFFFF	16.26	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234F

Deuteranopia (green-blind)

#001E4C

Tritanopia (blue-blind)

#002730

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #171a4d;
/* rgb */ color: rgb(23, 26, 77);
/* oklch */ color: oklch(25.1% 0.092 275.0);

Tailwind

colors: {
  custom: {
    50: '#5c567f',
    500: '#171a4d',
    950: '#000000',
  },
}

SCSS

$custom: #171a4d;
$custom-light: #5c567f;
$custom-dark: #000000;

JSON

{
  "hex": "#171a4d",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 77
  },
  "hsl": {
    "h": 236.667,
    "s": 54,
    "l": 19.608
  },
  "oklch": {
    "l": 0.25117,
    "c": 0.09248,
    "h": 275
  },
  "luminance": 0.01457
}

Semantic roles & 50–950 ramp

primary

#171A4D

secondary

#84803C

accent

#D54ADD

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #171A4D

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

Preview Lab → · Contrast checker → · Palette generator →