#171D49#171D49

#171D49 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.082 H 273.3°. Best body text is #FFFFFF at 16.05:1 contrast (WCAG AA passes).

Color values

HEX	#171D49
RGB	rgb(23, 29, 73)
HSL	hsl(233, 52%, 19%)
HSV	hsv(233, 68%, 29%)
CMYK	cmyk(68.5%, 60.3%, 0%, 71.4%)
CIE-LAB	lab(12.87, 13.48, -28.37)
CIE-LCH	lch(12.87, 31.40, 295.41°)
OKLab	oklab(25.41% 0.0047 -0.0814)
OKLCH	oklch(25.41% 0.082 273.3)
XYZ	xyz(1.9949, 1.5418, 6.4945)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.61

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D49 #494317

analogous

#173649 #171D49 #2A1749

triadic

#171D49 #49171D #1D4917

tetradic

#171D49 #491736 #494317 #17492A

square

#171D49 #491736 #494317 #17492A

split-complementary

#171D49 #492A17 #364917

monochromatic

#070917 #080B1A #171D49 #262F78 #3442A6

Accessibility & contrast

On white

16.05

#171D49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#171D49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D49

16.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D49	#FFFFFF	#000000	##FFFFFF
##171D49	1.00	16.05	1.31	16.05
#FFFFFF	16.05	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02244B

Deuteranopia (green-blind)

#001F48

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #171d49;
/* rgb */ color: rgb(23, 29, 73);
/* oklch */ color: oklch(25.4% 0.082 273.3);

Tailwind

colors: {
  custom: {
    50: '#5a587c',
    500: '#171d49',
    950: '#000000',
  },
}

SCSS

$custom: #171d49;
$custom-light: #5a587c;
$custom-dark: #000000;

JSON

{
  "hex": "#171d49",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 73
  },
  "hsl": {
    "h": 232.8,
    "s": 52.083,
    "l": 18.824
  },
  "oklch": {
    "l": 0.2541,
    "c": 0.08153,
    "h": 273.3
  },
  "luminance": 0.01542
}

Semantic roles & 50–950 ramp

primary

#171D49

secondary

#80783C

accent

#CA4CDC

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #171D49

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

Preview Lab → · Contrast checker → · Palette generator →