#171E4C#171E4C

#171E4C is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.9% C 0.085 H 272.5°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#171E4C
RGB	rgb(23, 30, 76)
HSL	hsl(232, 54%, 19%)
HSV	hsv(232, 70%, 30%)
CMYK	cmyk(69.7%, 60.5%, 0%, 70.2%)
CIE-LAB	lab(13.43, 13.95, -29.54)
CIE-LCH	lch(13.43, 32.66, 295.28°)
OKLab	oklab(25.91% 0.0038 -0.0848)
OKLCH	oklch(25.91% 0.085 272.5)
XYZ	xyz(2.1217, 1.6323, 7.0393)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.91

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E4C #4C4517

analogous

#17394C #171E4C #2B174C

triadic

#171E4C #4C171E #1E4C17

tetradic

#171E4C #4C1739 #4C4517 #174C2B

square

#171E4C #4C1739 #4C4517 #174C2B

split-complementary

#171E4C #4C2B17 #394C17

monochromatic

#070917 #090B1D #171E4C #25317B #3343AA

Accessibility & contrast

On white

15.83

#171E4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#171E4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E4C

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E4C	#FFFFFF	#000000	##FFFFFF
##171E4C	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01254E

Deuteranopia (green-blind)

#00204B

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171e4c;
/* rgb */ color: rgb(23, 30, 76);
/* oklch */ color: oklch(25.9% 0.085 272.5);

Tailwind

colors: {
  custom: {
    50: '#5b597e',
    500: '#171e4c',
    950: '#000000',
  },
}

SCSS

$custom: #171e4c;
$custom-light: #5b597e;
$custom-dark: #000000;

JSON

{
  "hex": "#171e4c",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 76
  },
  "hsl": {
    "h": 232.075,
    "s": 53.535,
    "l": 19.412
  },
  "oklch": {
    "l": 0.25905,
    "c": 0.0849,
    "h": 272.5
  },
  "luminance": 0.01633
}

Semantic roles & 50–950 ramp

primary

#171E4C

secondary

#837A3C

accent

#CA4BDD

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #171E4C

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

Preview Lab → · Contrast checker → · Palette generator →