#818fb4

Color #818fb4

A muted light blue.

Closest named color Light Slate Gray #778899 · ΔE 12.03 Nearest Tailwind class slate-400 #90a1b9 · ΔE 7.3

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#818fb4

RGB

rgb(129, 143, 180)

HSL

hsl(223.5, 25.4%, 60.6%)

HSV / HSB

hsv(223.5, 28.3%, 70.6%)

CMYK

cmyk(28.3%, 20.6%, 0%, 29.4%)

LAB

lab(59.53, 3.57, -21)

LCH

lch(59.53, 21.3, 279.65)

OKLCH

oklch(65.2%, 0.0578, 268.61)

HWB

hwb(223.5, 50.6%, 29.4%)

Harmony colors

Complementary

#b4a681

Analogous

#81a9b4

#818fb4

#8c81b4

Triadic

#818fb4

#b4818f

#8fb481

Split-complementary

#818fb4

#b48c81

#a9b481

Tetradic

#818fb4

#a681b4

#b4a681

#8fb481

Square

#818fb4

#b481a9

#b4a681

#81b48c

Shades

Color #818fb4 mixed toward black.

#6172a1

#4d5b81

#3a4461

#262e41

#131720

Tints

Color #818fb4 mixed toward white.

#96a2c1

#abb4cd

#c0c7da

#d5dae6

#eaecf3

Tones

Color #818fb4 mixed toward gray.

#8591b0

#8a93ac

#8e95a7

#9297a3

#96999f

Accessibility

Aa White text on this color

3.22:1

Aa Black text on this color

6.52:1

Black text reads better on this background (6.52:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#8787ac · ΔE 5.5

Deuteranopia

#8685aa · ΔE 6

Tritanopia

#82a5a4 · ΔE 19.6

Achromatopsia

#8f8f8f · ΔE 14.6

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

Code

CSS

background-color: #818fb4;

Tailwind (arbitrary value)

bg-[#818fb4]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#818fb4 (#818fb4) is rgb(129, 143, 180) in RGB.

No, #818fb4 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #818fb4, or check how it holds up for accessibility.

Generate a palette → Check contrast