The CSS Grayscale Filter Function

This article demonstrates how to the use the CSS grayscale filter function on elements with CSS filter. Included is code and examples.

The value parameter of grayscale is a number or percentage. A value over 0%, is more grayscale, while 100% is fully converted to grayscale. The range is linear, so each increase or decrease in the value is equal. When grayscale is not supplied a number the default is 0 and when 0% or 0 is supplied it leaves the element unchanged. For interpolation, the initial value is 0.

The examples below uses numbers and percentages values for the parameter of the grayscale filter function.

You can apply the grayscale filter to an image or any other element by using CSS selectors.

HTML

CSS

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