#171E4D#171E4D

#171E4D is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.0% C 0.087 H 272.5°. Best body text is #FFFFFF at 15.80:1 contrast (WCAG AA passes).

Color values

HEX	#171E4D
RGB	rgb(23, 30, 77)
HSL	hsl(232, 54%, 20%)
HSV	hsv(232, 70%, 30%)
CMYK	cmyk(70.1%, 61%, 0%, 69.8%)
CIE-LAB	lab(13.51, 14.36, -30.09)
CIE-LCH	lch(13.51, 33.34, 295.51°)
OKLab	oklab(26% 0.0038 -0.0864)
OKLCH	oklch(26% 0.087 272.5)
XYZ	xyz(2.1567, 1.6463, 7.2239)
Luminance	0.0165 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.94

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E4D #4D4617

analogous

#17394D #171E4D #2B174D

triadic

#171E4D #4D171E #1E4D17

tetradic

#171E4D #4D1739 #4D4617 #174D2B

square

#171E4D #4D1739 #4D4617 #174D2B

split-complementary

#171E4D #4D2B17 #394D17

monochromatic

#070918 #090C1E #171E4D #25307C #3343AB

Accessibility & contrast

On white

15.80

#171E4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#171E4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E4D

15.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E4D	#FFFFFF	#000000	##FFFFFF
##171E4D	1.00	15.80	1.33	15.80
#FFFFFF	15.80	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00254F

Deuteranopia (green-blind)

#00204C

Tritanopia (blue-blind)

#002932

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #171e4d;
/* rgb */ color: rgb(23, 30, 77);
/* oklch */ color: oklch(26.0% 0.087 272.5);

Tailwind

colors: {
  custom: {
    50: '#5b597f',
    500: '#171e4d',
    950: '#000000',
  },
}

SCSS

$custom: #171e4d;
$custom-light: #5b597f;
$custom-dark: #000000;

JSON

{
  "hex": "#171e4d",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 77
  },
  "hsl": {
    "h": 232.222,
    "s": 54,
    "l": 19.608
  },
  "oklch": {
    "l": 0.25995,
    "c": 0.08652,
    "h": 272.5
  },
  "luminance": 0.01647
}

Semantic roles & 50–950 ramp

primary

#171E4D

secondary

#847B3C

accent

#CA4ADD

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #171E4D

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

Preview Lab → · Contrast checker → · Palette generator →