#183d77

Color #183d77

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 17.98 Nearest Tailwind class blue-900 #1c398e · ΔE 4.6

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Conversions

HEX

#183d77

RGB

rgb(24, 61, 119)

HSL

hsl(216.6, 66.4%, 28%)

HSV / HSB

hsv(216.6, 79.8%, 46.7%)

CMYK

cmyk(79.8%, 48.7%, 0%, 53.3%)

LAB

lab(26.34, 9.4, -36.98)

LCH

lch(26.34, 38.16, 284.26)

OKLCH

oklch(36.8%, 0.108, 259.22)

HWB

hwb(216.6, 9.4%, 53.3%)

Harmony colors

Complementary

#775218

Analogous

#186c77

#183d77

#221877

Triadic

#183d77

#77183d

#3d7718

Split-complementary

#183d77

#772218

#6c7718

Tetradic

#183d77

#521877

#775218

#3d7718

Square

#183d77

#77186c

#775218

#187722

Shades

Color #183d77 mixed toward black.

#143363

#10294f

#0c1e3b

#081428

#040a14

Tints

Color #183d77 mixed toward white.

#2257aa

#3373d6

#6696e0

#99b9ea

#ccdcf5

Tones

Color #183d77 mixed toward gray.

#203f6f

#284067

#30425f

#384457

#3f464f

Accessibility

Aa White text on this color

10.65:1

Aa Black text on this color

1.97:1

White text reads better on this background (10.65:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2c2d6c · ΔE 7.9

Deuteranopia

#2a276a · ΔE 9.5

Tritanopia

#1b6361 · ΔE 26.8

Achromatopsia

#3e3e3e · ΔE 20.8

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

Code

CSS

background-color: #183d77;

Tailwind (arbitrary value)

bg-[#183d77]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#183d77 (#183d77) is rgb(24, 61, 119) in RGB.

No, #183d77 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 #183d77, or check how it holds up for accessibility.

Generate a palette → Check contrast