#171e2b

Color #171e2b

A muted very dark blue.

Closest named color Black #000000 · ΔE 14.86 Nearest Tailwind class gray-900 #101828 · ΔE 2.6

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Conversions

HEX

#171e2b

RGB

rgb(23, 30, 43)

HSL

hsl(219, 30.3%, 12.9%)

HSV / HSB

hsv(219, 46.5%, 16.9%)

CMYK

cmyk(46.5%, 30.2%, 0%, 83.1%)

LAB

lab(11.17, 1.02, -9.75)

LCH

lch(11.17, 9.8, 275.97)

OKLCH

oklch(23.5%, 0.0273, 262.43)

HWB

hwb(219, 9%, 83.1%)

Harmony colors

Complementary

#2b2417

Analogous

#17282b

#171e2b

#1a172b

Triadic

#171e2b

#2b171e

#1e2b17

Split-complementary

#171e2b

#2b1a17

#282b17

Tetradic

#171e2b

#24172b

#2b2417

#1e2b17

Square

#171e2b

#2b1728

#2b2417

#172b1a

Shades

Color #171e2b mixed toward black.

#131924

#0f141d

#0b0f15

#080a0e

#040507

Tints

Color #171e2b mixed toward white.

#31405b

#4b618b

#6e86b2

#9faecb

#cfd7e5

Tones

Color #171e2b mixed toward gray.

#191e29

#1a1f28

#1c1f26

#1e2024

#1f2023

Accessibility

Aa White text on this color

16.71:1

Aa Black text on this color

1.26:1

White text reads better on this background (16.71:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1a1a28 · ΔE 4.3

Deuteranopia

#1a1928 · ΔE 5.2

Tritanopia

#172625 · ΔE 11.6

Achromatopsia

#1e1e1e · ΔE 8.1

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

Code

CSS

background-color: #171e2b;

Tailwind (arbitrary value)

bg-[#171e2b]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Royal Blue #4169e1

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#171e2b (#171e2b) is rgb(23, 30, 43) in RGB.

No, #171e2b 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 #171e2b, or check how it holds up for accessibility.

Generate a palette → Check contrast