#171E45#171E45

#171E45 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.073 H 272.5°. Best body text is #FFFFFF at 16.06:1 contrast (WCAG AA passes).

Color values

HEX	#171E45
RGB	rgb(23, 30, 69)
HSL	hsl(231, 50%, 18%)
HSV	hsv(231, 67%, 27%)
CMYK	cmyk(66.7%, 56.5%, 0%, 72.9%)
CIE-LAB	lab(12.86, 11.09, -25.61)
CIE-LCH	lch(12.86, 27.91, 293.42°)
OKLab	oklab(25.3% 0.0032 -0.0733)
OKLCH	oklch(25.3% 0.073 272.5)
XYZ	xyz(1.8914, 1.5402, 5.8267)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E45 #453E17

analogous

#173545 #171E45 #271745

triadic

#171E45 #45171E #1E4517

tetradic

#171E45 #451735 #453E17 #174527

square

#171E45 #451735 #453E17 #174527

split-complementary

#171E45 #452717 #354517

monochromatic

#080A17 #080A17 #171E45 #263273 #3646A1

Accessibility & contrast

On white

16.06

#171E45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#171E45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E45

16.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E45	#FFFFFF	#000000	##FFFFFF
##171E45	1.00	16.06	1.31	16.06
#FFFFFF	16.06	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#092346

Deuteranopia (green-blind)

#021F44

Tritanopia (blue-blind)

#00272E

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #171e45;
/* rgb */ color: rgb(23, 30, 69);
/* oklch */ color: oklch(25.3% 0.073 272.5);

Tailwind

colors: {
  custom: {
    50: '#595979',
    500: '#171e45',
    950: '#000000',
  },
}

SCSS

$custom: #171e45;
$custom-light: #595979;
$custom-dark: #000000;

JSON

{
  "hex": "#171e45",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 69
  },
  "hsl": {
    "h": 230.87,
    "s": 50,
    "l": 18.039
  },
  "oklch": {
    "l": 0.25301,
    "c": 0.07333,
    "h": 272.5
  },
  "luminance": 0.0154
}

Semantic roles & 50–950 ramp

primary

#171E45

secondary

#7C723C

accent

#C44EDA

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #171E45

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

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