#818aa0

Color #818aa0

A nearly neutral, gray-leaning medium blue.

Closest named color Light Slate Gray #778899 · ΔE 4.43 Nearest Tailwind class slate-400 #90a1b9 · ΔE 7.8

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

Conversions

HEX

#818aa0

RGB

rgb(129, 138, 160)

HSL

hsl(222.6, 14%, 56.7%)

HSV / HSB

hsv(222.6, 19.4%, 62.7%)

CMYK

cmyk(19.4%, 13.8%, 0%, 37.3%)

LAB

lab(57.45, 1.57, -12.76)

LCH

lch(57.45, 12.86, 277.01)

OKLCH

oklch(63.4%, 0.0347, 267.85)

HWB

hwb(222.6, 50.6%, 37.3%)

Harmony colors

Complementary

#a09781

Analogous

#819aa0

#818aa0

#8881a0

Triadic

#818aa0

#a0818a

#8aa081

Split-complementary

#818aa0

#a08881

#9aa081

Tetradic

#818aa0

#9781a0

#a09781

#8aa081

Square

#818aa0

#a0819a

#a09781

#81a088

Shades

Color #818aa0 mixed toward black.

#687189

#535b6e

#3e4452

#292d37

#15171b

Tints

Color #818aa0 mixed toward white.

#969eb0

#abb1c0

#c0c5d0

#d5d8df

#eaecef

Tones

Color #818aa0 mixed toward gray.

#848b9d

#868c9b

#898d98

#8b8e96

#8e9093

Accessibility

Aa White text on this color

3.46:1

Aa Black text on this color

6.08:1

Black text reads better on this background (6.08:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#85859b · ΔE 4.4

Deuteranopia

#84849a · ΔE 4.5

Tritanopia

#819796 · ΔE 14

Achromatopsia

#8a8a8a · ΔE 10

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

Code

CSS

background-color: #818aa0;

Tailwind (arbitrary value)

bg-[#818aa0]

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

#818aa0 (#818aa0) is rgb(129, 138, 160) in RGB.

No, #818aa0 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 #818aa0, or check how it holds up for accessibility.

Generate a palette → Check contrast