#171e51

Color #171e51

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 22.04 Nearest Tailwind class blue-950 #162456 · ΔE 2.3

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Conversions

HEX

#171e51

RGB

rgb(23, 30, 81)

HSL

hsl(232.8, 55.8%, 20.4%)

HSV / HSB

hsv(232.8, 71.6%, 31.8%)

CMYK

cmyk(71.6%, 63%, 0%, 68.2%)

LAB

lab(13.85, 15.99, -32.26)

LCH

lch(13.85, 36.01, 296.37)

OKLCH

oklch(26.4%, 0.0929, 272.41)

HWB

hwb(232.8, 9%, 68.2%)

Harmony colors

Complementary

#514a17

Analogous

#173b51

#171e51

#2d1751

Triadic

#171e51

#51171e

#1e5117

Split-complementary

#171e51

#512d17

#3b5117

Tetradic

#171e51

#4a1751

#514a17

#1e5117

Square

#171e51

#51173b

#514a17

#17512d

Shades

Color #171e51 mixed toward black.

#131944

#0f1436

#0b0f29

#080a1b

#04050e

Tints

Color #171e51 mixed toward white.

#263186

#3545ba

#616ed2

#969fe1

#cacff0

Tones

Color #171e51 mixed toward gray.

#1c224c

#212547

#262943

#2a2d3e

#2f3039

Accessibility

Aa White text on this color

15.66:1

Aa Black text on this color

1.34:1

White text reads better on this background (15.66:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1a1a48 · ΔE 2.4

Deuteranopia

#1a1946 · ΔE 2.8

Tritanopia

#17413f · ΔE 26.5

Achromatopsia

#232323 · ΔE 20.7

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

Code

CSS

background-color: #171e51;

Tailwind (arbitrary value)

bg-[#171e51]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#171e51 (#171e51) is rgb(23, 30, 81) in RGB.

No, #171e51 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 #171e51, or check how it holds up for accessibility.

Generate a palette → Check contrast