#171538

Color #171538

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 27.47 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 4.8

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Conversions

HEX

#171538

RGB

rgb(23, 21, 56)

HSL

hsl(243.4, 45.5%, 15.1%)

HSV / HSB

hsv(243.4, 62.5%, 22%)

CMYK

cmyk(58.9%, 62.5%, 0%, 78%)

LAB

lab(9.02, 12.78, -22.58)

LCH

lch(9.02, 25.95, 299.51)

OKLCH

oklch(22.1%, 0.066, 282.16)

HWB

hwb(243.4, 8.2%, 78%)

Harmony colors

Complementary

#363815

Analogous

#152538

#171538

#281538

Triadic

#171538

#381715

#153817

Split-complementary

#171538

#382815

#253815

Tetradic

#171538

#381536

#363815

#153817

Square

#171538

#381525

#363815

#153828

Shades

Color #171538 mixed toward black.

#13112f

#0f0e25

#0b0a1c

#080713

#040309

Tints

Color #171538 mixed toward white.

#2c296d

#423ca1

#6761c4

#9a96d8

#cccaeb

Tones

Color #171538 mixed toward gray.

#1a1835

#1c1b32

#1f1e2f

#21212c

#242429

Accessibility

Aa White text on this color

17.49:1

Aa Black text on this color

1.2:1

White text reads better on this background (17.49:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#161632 · ΔE 2.6

Deuteranopia

#161630 · ΔE 3.4

Tritanopia

#172c2b · ΔE 23.2

Achromatopsia

#1a1a1a · ΔE 17.6

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

Code

CSS

background-color: #171538;

Tailwind (arbitrary value)

bg-[#171538]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#171538 (#171538) is rgb(23, 21, 56) in RGB.

No, #171538 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

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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 #171538, or check how it holds up for accessibility.

Generate a palette → Check contrast