#5181ce

Color #5181ce

A moderately saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 9.44 Nearest Tailwind class blue-500 #2b7fff · ΔE 4.7

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Conversions

HEX

#5181ce

RGB

rgb(81, 129, 206)

HSL

hsl(217, 56.1%, 56.3%)

HSV / HSB

hsv(217, 60.7%, 80.8%)

CMYK

cmyk(60.7%, 37.4%, 0%, 19.2%)

LAB

lab(53.93, 7.35, -44.7)

LCH

lch(53.93, 45.3, 279.34)

OKLCH

oklch(60.5%, 0.129, 259.46)

HWB

hwb(217, 31.8%, 19.2%)

Harmony colors

Complementary

#ce9e51

Analogous

#51bfce

#5181ce

#6051ce

Triadic

#5181ce

#ce5181

#81ce51

Split-complementary

#5181ce

#ce6051

#bfce51

Tetradic

#5181ce

#9e51ce

#ce9e51

#81ce51

Square

#5181ce

#ce51bf

#ce9e51

#51ce60

Shades

Color #5181ce mixed toward black.

#3568bb

#2a5395

#203e70

#152a4b

#0b1525

Tints

Color #5181ce mixed toward white.

#6e96d6

#8babde

#a8c0e7

#c5d5ef

#e2eaf7

Tones

Color #5181ce mixed toward gray.

#5b83c4

#6686b9

#7088af

#7b8ba4

#858d9a

Accessibility

Aa White text on this color

3.9:1

Aa Black text on this color

5.38:1

Black text reads better on this background (5.38:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#696abf · ΔE 11.4

Deuteranopia

#6663bb · ΔE 13.4

Tritanopia

#54b2af · ΔE 29

Achromatopsia

#818181 · ΔE 22.5

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

Code

CSS

background-color: #5181ce;

Tailwind (arbitrary value)

bg-[#5181ce]

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

#5181ce (#5181ce) is rgb(81, 129, 206) in RGB.

No, #5181ce 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 #5181ce, or check how it holds up for accessibility.

Generate a palette → Check contrast