#1b174e

Color #1b174e

A moderately saturated very dark blue.

Closest named color Midnight Blue #191970 · ΔE 20.04 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 1.2

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Conversions

HEX

#1b174e

RGB

rgb(27, 23, 78)

HSL

hsl(244.4, 54.5%, 19.8%)

HSV / HSB

hsv(244.4, 70.5%, 30.6%)

CMYK

cmyk(65.4%, 70.5%, 0%, 69.4%)

LAB

lab(11.93, 20.65, -33.33)

LCH

lch(11.93, 39.21, 301.78)

OKLCH

oklch(24.9%, 0.0974, 279.94)

HWB

hwb(244.4, 9%, 69.4%)

Harmony colors

Complementary

#4a4e17

Analogous

#172e4e

#1b174e

#37174e

Triadic

#1b174e

#4e1b17

#174e1b

Split-complementary

#1b174e

#4e3717

#2e4e17

Tetradic

#1b174e

#4e174a

#4a4e17

#174e1b

Square

#1b174e

#4e172e

#4a4e17

#174e37

Shades

Color #1b174e mixed toward black.

#171341

#120f34

#0e0b27

#09081a

#05040d

Tints

Color #1b174e mixed toward white.

#2d2683

#3f36b7

#6961d0

#9b96e0

#cdcaef

Tones

Color #1b174e mixed toward gray.

#1f1c49

#232045

#272540

#2b293c

#2f2e37

Accessibility

Aa White text on this color

16.42:1

Aa Black text on this color

1.28:1

White text reads better on this background (16.42:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#191945 · ΔE 2.8

Deuteranopia

#1a1a43 · ΔE 3.6

Tritanopia

#1b3d3b · ΔE 26.7

Achromatopsia

#1f1f1f · ΔE 21.8

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

Code

CSS

background-color: #1b174e;

Tailwind (arbitrary value)

bg-[#1b174e]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#1b174e (#1b174e) is rgb(27, 23, 78) in RGB.

No, #1b174e 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 #1b174e, or check how it holds up for accessibility.

Generate a palette → Check contrast