#183f70

Color #183f70

A moderately saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 23.51 Nearest Tailwind class blue-900 #1c398e · ΔE 6

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Conversions

HEX

#183f70

RGB

rgb(24, 63, 112)

HSL

hsl(213.4, 64.7%, 26.7%)

HSV / HSB

hsv(213.4, 78.6%, 43.9%)

CMYK

cmyk(78.6%, 43.7%, 0%, 56.1%)

LAB

lab(26.5, 5.12, -32.28)

LCH

lch(26.5, 32.68, 279.01)

OKLCH

oklch(36.8%, 0.0952, 255.72)

HWB

hwb(213.4, 9.4%, 56.1%)

Harmony colors

Complementary

#704918

Analogous

#186b70

#183f70

#1d1870

Triadic

#183f70

#70183f

#3f7018

Split-complementary

#183f70

#701d18

#6b7018

Tetradic

#183f70

#491870

#704918

#3f7018

Square

#183f70

#70186b

#704918

#18701d

Shades

Color #183f70 mixed toward black.

#14355d

#102a4b

#0c2038

#081525

#040b13

Tints

Color #183f70 mixed toward white.

#235ca3

#3279d3

#659bde

#98bce9

#ccdef4

Tones

Color #183f70 mixed toward gray.

#1f4069

#274161

#2e425a

#354253

#3d434b

Accessibility

Aa White text on this color

10.59:1

Aa Black text on this color

1.98:1

White text reads better on this background (10.59:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2d2e67 · ΔE 9

Deuteranopia

#2b2864 · ΔE 10.6

Tritanopia

#1b5f5d · ΔE 24.5

Achromatopsia

#3f3f3f · ΔE 19

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

Code

CSS

background-color: #183f70;

Tailwind (arbitrary value)

bg-[#183f70]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Cornflower Blue #6495ed

Alice Blue #f0f8ff

Frequently asked questions

#183f70 (#183f70) is rgb(24, 63, 112) in RGB.

No, #183f70 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 #183f70, or check how it holds up for accessibility.

Generate a palette → Check contrast