#171a4b

Color #171a4b

A moderately saturated very dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 23.75 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 1.5

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Conversions

HEX

#171a4b

RGB

rgb(23, 26, 75)

HSL

hsl(236.5, 53.1%, 19.2%)

HSV / HSB

hsv(236.5, 69.3%, 29.4%)

CMYK

cmyk(69.3%, 65.3%, 0%, 70.6%)

LAB

lab(12.15, 16.53, -30.92)

LCH

lch(12.15, 35.06, 298.13)

OKLCH

oklch(24.9%, 0.0893, 275.21)

HWB

hwb(236.5, 9%, 70.6%)

Harmony colors

Complementary

#4b4817

Analogous

#17344b

#171a4b

#2e174b

Triadic

#171a4b

#4b171a

#1a4b17

Split-complementary

#171a4b

#4b2e17

#344b17

Tetradic

#171a4b

#48174b

#4b4817

#1a4b17

Square

#171a4b

#4b1734

#4b4817

#174b2e

Shades

Color #171a4b mixed toward black.

#13163e

#0f1132

#0b0d25

#080919

#04040c

Tints

Color #171a4b mixed toward white.

#272c80

#373eb4

#6168cf

#969adf

#cacdef

Tones

Color #171a4b mixed toward gray.

#1b1e47

#202242

#24253e

#28293a

#2d2d35

Accessibility

Aa White text on this color

16.33:1

Aa Black text on this color

1.29:1

White text reads better on this background (16.33:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#181843 · ΔE 1.9

Deuteranopia

#181841 · ΔE 2.4

Tritanopia

#173b3a · ΔE 25.6

Achromatopsia

#202020 · ΔE 20.6

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #171a4b;

Tailwind (arbitrary value)

bg-[#171a4b]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#171a4b (#171a4b) is rgb(23, 26, 75) in RGB.

No, #171a4b is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #171a4b, or check how it holds up for accessibility.

Generate a palette → Check contrast