#818cab

Color #818cab

A muted medium blue.

Closest named color Light Slate Gray #778899 · ΔE 8.76 Nearest Tailwind class slate-400 #90a1b9 · ΔE 7.6

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

Conversions

HEX

#818cab

RGB

rgb(129, 140, 171)

HSL

hsl(224.3, 20%, 58.8%)

HSV / HSB

hsv(224.3, 24.6%, 67.1%)

CMYK

cmyk(24.6%, 18.1%, 0%, 32.9%)

LAB

lab(58.38, 3.05, -17.64)

LCH

lch(58.38, 17.9, 279.81)

OKLCH

oklch(64.2%, 0.0483, 269.64)

HWB

hwb(224.3, 50.6%, 32.9%)

Harmony colors

Complementary

#aba081

Analogous

#81a1ab

#818cab

#8b81ab

Triadic

#818cab

#ab818c

#8cab81

Split-complementary

#818cab

#ab8b81

#a1ab81

Tetradic

#818cab

#a081ab

#aba081

#8cab81

Square

#818cab

#ab81a1

#aba081

#81ab8b

Shades

Color #818cab mixed toward black.

#647196

#505a78

#3c445a

#282d3c

#14171e

Tints

Color #818cab mixed toward white.

#969fb9

#abb2c7

#c0c5d5

#d5d9e3

#eaecf1

Tones

Color #818cab mixed toward gray.

#848ea7

#888fa4

#8b91a0

#8f939d

#929499

Accessibility

Aa White text on this color

3.35:1

Aa Black text on this color

6.27:1

Black text reads better on this background (6.27:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#8686a4 · ΔE 4.7

Deuteranopia

#8584a2 · ΔE 5.3

Tritanopia

#829f9d · ΔE 18.1

Achromatopsia

#8c8c8c · ΔE 12.9

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

Code

CSS

background-color: #818cab;

Tailwind (arbitrary value)

bg-[#818cab]

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

#818cab (#818cab) is rgb(129, 140, 171) in RGB.

No, #818cab 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.

Try it → Accessibility

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 #818cab, or check how it holds up for accessibility.

Generate a palette → Check contrast