#171b2e

Color #171b2e

A muted very dark blue.

Closest named color Black #000000 · ΔE 17.38 Nearest Tailwind class slate-900 #0f172b · ΔE 2

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Conversions

HEX

#171b2e

RGB

rgb(23, 27, 46)

HSL

hsl(229.6, 33.3%, 13.5%)

HSV / HSB

hsv(229.6, 50%, 18%)

CMYK

cmyk(50%, 41.3%, 0%, 82%)

LAB

lab(10.28, 4.36, -13.32)

LCH

lch(10.28, 14.02, 288.12)

OKLCH

oklch(22.8%, 0.0374, 273.99)

HWB

hwb(229.6, 9%, 82%)

Harmony colors

Complementary

#2e2a17

Analogous

#17262e

#171b2e

#1e172e

Triadic

#171b2e

#2e171b

#1b2e17

Split-complementary

#171b2e

#2e1e17

#262e17

Tetradic

#171b2e

#2a172e

#2e2a17

#1b2e17

Square

#171b2e

#2e1726

#2e2a17

#172e1e

Shades

Color #171b2e mixed toward black.

#131626

#0f121f

#0b0d17

#08090f

#040408

Tints

Color #171b2e mixed toward white.

#2f385f

#485490

#6c79b5

#9da5ce

#ced2e6

Tones

Color #171b2e mixed toward gray.

#191c2c

#1b1d2a

#1d1f28

#1f2026

#212124

Accessibility

Aa White text on this color

17.04:1

Aa Black text on this color

1.23:1

White text reads better on this background (17.04:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#19192a · ΔE 1.9

Deuteranopia

#191829 · ΔE 2.5

Tritanopia

#172726 · ΔE 16

Achromatopsia

#1c1c1c · ΔE 11.1

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

Code

CSS

background-color: #171b2e;

Tailwind (arbitrary value)

bg-[#171b2e]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#171b2e (#171b2e) is rgb(23, 27, 46) in RGB.

No, #171b2e is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

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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 #171b2e, or check how it holds up for accessibility.

Generate a palette → Check contrast