css function

`grayscale()` CSS function

The grayscale() CSS function converts the input image to grayscale. Its result is a filter-function.

Interactive exampleOpen the canonical MDN source to run this embedded demo.

filter: grayscale(0);

filter: grayscale(0.2);

filter: grayscale(60%);

filter: grayscale(1);

<section id="default-example">
  <img
    class="transition-all"
    id="example-element"
    src="/shared-assets/images/examples/firefox-logo.svg"
    width="200" />
</section>

Syntax

grayscale(amount)

Parameters

amount Optional
- : Amount of the input image that is converted to grayscale. It is specified as a <number> or a <percentage>. A value of 100% changes the input completely to grayscale, while a value of 0% leaves the input unchanged. Values between 0% and 100% have linear multipliers on the effect. The initial value used for interpolation is 0. The default value is 1.

Formal syntax

Examples

Examples of correct values for grayscale()

grayscale(0)     /* No effect */
grayscale(.7)    /* 70% grayscale */

grayscale()      /* Completely grayscale */
grayscale(1)
grayscale(100%)

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.