#171E4A#171E4A

#171E4A is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.082 H 272.5°. Best body text is #FFFFFF at 15.90:1 contrast (WCAG AA passes).

Color values

HEX	#171E4A
RGB	rgb(23, 30, 74)
HSL	hsl(232, 53%, 19%)
HSV	hsv(232, 69%, 29%)
CMYK	cmyk(68.9%, 59.5%, 0%, 71%)
CIE-LAB	lab(13.26, 13.13, -28.43)
CIE-LCH	lch(13.26, 31.31, 294.79°)
OKLab	oklab(25.73% 0.0036 -0.0816)
OKLCH	oklch(25.73% 0.082 272.5)
XYZ	xyz(2.0532, 1.6049, 6.6788)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E4A #4A4317

analogous

#17384A #171E4A #2A174A

triadic

#171E4A #4A171E #1E4A17

tetradic

#171E4A #4A1738 #4A4317 #174A2A

square

#171E4A #4A1738 #4A4317 #174A2A

split-complementary

#171E4A #4A2A17 #384A17

monochromatic

#070917 #080B1B #171E4A #263179 #3444A7

Accessibility & contrast

On white

15.90

#171E4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#171E4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E4A

15.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E4A	#FFFFFF	#000000	##FFFFFF
##171E4A	1.00	15.90	1.32	15.90
#FFFFFF	15.90	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03244C

Deuteranopia (green-blind)

#002049

Tritanopia (blue-blind)

#002830

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171e4a;
/* rgb */ color: rgb(23, 30, 74);
/* oklch */ color: oklch(25.7% 0.082 272.5);

Tailwind

colors: {
  custom: {
    50: '#5a597d',
    500: '#171e4a',
    950: '#000000',
  },
}

SCSS

$custom: #171e4a;
$custom-light: #5a597d;
$custom-dark: #000000;

JSON

{
  "hex": "#171e4a",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 74
  },
  "hsl": {
    "h": 231.765,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.25728,
    "c": 0.08164,
    "h": 272.5
  },
  "luminance": 0.01605
}

Semantic roles & 50–950 ramp

primary

#171E4A

secondary

#81783C

accent

#C84CDC

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #171E4A

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

Preview Lab → · Contrast checker → · Palette generator →