#171A4E#171A4E

#171A4E is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.094 H 274.9°. Best body text is #FFFFFF at 16.23:1 contrast (WCAG AA passes).

Color values

HEX	#171A4E
RGB	rgb(23, 26, 78)
HSL	hsl(237, 54%, 20%)
HSV	hsv(237, 71%, 31%)
CMYK	cmyk(70.5%, 66.7%, 0%, 69.4%)
CIE-LAB	lab(12.42, 17.74, -32.54)
CIE-LCH	lch(12.42, 37.06, 298.60°)
OKLab	oklab(25.21% 0.008 -0.0937)
OKLCH	oklch(25.21% 0.094 274.9)
XYZ	xyz(2.0974, 1.4708, 7.3796)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A4E #4E4B17

analogous

#17364E #171A4E #2F174E

triadic

#171A4E #4E171A #1A4E17

tetradic

#171A4E #4E1736 #4E4B17 #174E2F

square

#171A4E #4E1736 #4E4B17 #174E2F

split-complementary

#171A4E #4E2F17 #364E17

monochromatic

#070818 #090A1F #171A4E #252A7D #333AAD

Accessibility & contrast

On white

16.23

#171A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#171A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A4E

16.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A4E	#FFFFFF	#000000	##FFFFFF
##171A4E	1.00	16.23	1.29	16.23
#FFFFFF	16.23	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002350

Deuteranopia (green-blind)

#001E4D

Tritanopia (blue-blind)

#002731

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #171a4e;
/* rgb */ color: rgb(23, 26, 78);
/* oklch */ color: oklch(25.2% 0.094 274.9);

Tailwind

colors: {
  custom: {
    50: '#5c5680',
    500: '#171a4e',
    950: '#000000',
  },
}

SCSS

$custom: #171a4e;
$custom-light: #5c5680;
$custom-dark: #000000;

JSON

{
  "hex": "#171a4e",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 78
  },
  "hsl": {
    "h": 236.727,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.25214,
    "c": 0.09405,
    "h": 274.9
  },
  "luminance": 0.01471
}

Semantic roles & 50–950 ramp

primary

#171A4E

secondary

#85813C

accent

#D64ADE

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #171A4E

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

Preview Lab → · Contrast checker → · Palette generator →