#17283f

Color #17283f

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 16.01 Nearest Tailwind class slate-800 #1d293d · ΔE 1.6

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Conversions

HEX

#17283f

RGB

rgb(23, 40, 63)

HSL

hsl(214.5, 46.5%, 16.9%)

HSV / HSB

hsv(214.5, 63.5%, 24.7%)

CMYK

cmyk(63.5%, 36.5%, 0%, 75.3%)

LAB

lab(15.79, 1.22, -16.77)

LCH

lch(15.79, 16.81, 274.16)

OKLCH

oklch(27.4%, 0.0487, 256.33)

HWB

hwb(214.5, 9%, 75.3%)

Harmony colors

Complementary

#3f2e17

Analogous

#173c3f

#17283f

#1a173f

Triadic

#17283f

#3f1728

#283f17

Split-complementary

#17283f

#3f1a17

#3c3f17

Tetradic

#17283f

#2e173f

#3f2e17

#283f17

Square

#17283f

#3f173c

#3f2e17

#173f1a

Shades

Color #17283f mixed toward black.

#132135

#0f1b2a

#0c1420

#080d15

#04070b

Tints

Color #17283f mixed toward white.

#2a4973

#3d6aa7

#648ec6

#98b3d9

#cbd9ec

Tones

Color #17283f mixed toward gray.

#1a293c

#1e2938

#212a35

#242a32

#282b2e

Accessibility

Aa White text on this color

14.88:1

Aa Black text on this color

1.41:1

White text reads better on this background (14.88:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f203a · ΔE 7.4

Deuteranopia

#1e1d39 · ΔE 8.6

Tritanopia

#183635 · ΔE 16.7

Achromatopsia

#272727 · ΔE 12.2

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

Code

CSS

background-color: #17283f;

Tailwind (arbitrary value)

bg-[#17283f]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#17283f (#17283f) is rgb(23, 40, 63) in RGB.

No, #17283f is not web-safe. The nearest web-safe colors are among its tones and shades below.

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 #17283f, or check how it holds up for accessibility.

Generate a palette → Check contrast