#171844#171844

#171844 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.8% C 0.081 H 277.3°. Best body text is #FFFFFF at 16.79:1 contrast (WCAG AA passes).

Color values

HEX	#171844
RGB	rgb(23, 24, 68)
HSL	hsl(239, 49%, 18%)
HSV	hsv(239, 66%, 27%)
CMYK	cmyk(66.2%, 64.7%, 0%, 73.3%)
CIE-LAB	lab(10.94, 15.22, -28.01)
CIE-LCH	lch(10.94, 31.88, 298.52°)
OKLab	oklab(23.84% 0.0103 -0.0804)
OKLCH	oklch(23.84% 0.081 277.3)
XYZ	xyz(1.7230, 1.2527, 5.6187)
Luminance	0.0125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171844 #444317

analogous

#172E44 #171844 #2C1744

triadic

#171844 #441718 #184417

tetradic

#171844 #44172E #444317 #17442C

square

#171844 #44172E #444317 #17442C

split-complementary

#171844 #442C17 #2E4417

monochromatic

#080817 #080817 #171844 #262872 #36389F

Accessibility & contrast

On white

16.79

#171844 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#171844 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171844

16.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171844	#FFFFFF	#000000	##FFFFFF
##171844	1.00	16.79	1.25	16.79
#FFFFFF	16.79	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F45

Deuteranopia (green-blind)

#001B43

Tritanopia (blue-blind)

#00222B

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #171844;
/* rgb */ color: rgb(23, 24, 68);
/* oklch */ color: oklch(23.8% 0.081 277.3);

Tailwind

colors: {
  custom: {
    50: '#5a5478',
    500: '#171844',
    950: '#000000',
  },
}

SCSS

$custom: #171844;
$custom-light: #5a5478;
$custom-dark: #000000;

JSON

{
  "hex": "#171844",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 68
  },
  "hsl": {
    "h": 238.667,
    "s": 49.451,
    "l": 17.843
  },
  "oklch": {
    "l": 0.23835,
    "c": 0.08107,
    "h": 277.3
  },
  "luminance": 0.01253
}

Semantic roles & 50–950 ramp

primary

#171844

secondary

#7B7A3C

accent

#D64FD9

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040209

muted

#79787B

Preview Lab

Preview with #171844

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

Preview Lab → · Contrast checker → · Palette generator →