#1c173d

Color #1c173d

A moderately saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 29.71 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 3.8

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Conversions

HEX

#1c173d

RGB

rgb(28, 23, 61)

HSL

hsl(247.9, 45.2%, 16.5%)

HSV / HSB

hsv(247.9, 62.3%, 23.9%)

CMYK

cmyk(54.1%, 62.3%, 0%, 76.1%)

LAB

lab(10.53, 14.51, -23.71)

LCH

lch(10.53, 27.8, 301.47)

OKLCH

oklch(23.5%, 0.0702, 285.62)

HWB

hwb(247.9, 9%, 76.1%)

Harmony colors

Complementary

#383d17

Analogous

#17253d

#1c173d

#2f173d

Triadic

#1c173d

#3d1c17

#173d1c

Split-complementary

#1c173d

#3d2f17

#253d17

Tetradic

#1c173d

#3d1738

#383d17

#173d1c

Square

#1c173d

#3d1725

#383d17

#173d2f

Shades

Color #1c173d mixed toward black.

#171333

#130f29

#0e0c1f

#090814

#05040a

Tints

Color #1c173d mixed toward white.

#342b71

#4b3ea4

#7164c5

#a098d8

#d0cbec

Tones

Color #1c173d mixed toward gray.

#1e1a3a

#211d37

#232134

#252430

#28272d

Accessibility

Aa White text on this color

16.94:1

Aa Black text on this color

1.24:1

White text reads better on this background (16.94:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1a1a36 · ΔE 3.8

Deuteranopia

#1a1b35 · ΔE 4.8

Tritanopia

#1c312f · ΔE 24.2

Achromatopsia

#1d1d1d · ΔE 18.5

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

Code

CSS

background-color: #1c173d;

Tailwind (arbitrary value)

bg-[#1c173d]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#1c173d (#1c173d) is rgb(28, 23, 61) in RGB.

No, #1c173d 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 #1c173d, or check how it holds up for accessibility.

Generate a palette → Check contrast