grayscale()

{{CSSRef}} 

The grayscale() CSS function converts the input image to grayscale. Its result is a {{cssxref("<filter-function>")}} .

{{InteractiveExample("CSS Demo: grayscale()")}} 

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_Inline}} 
  • : Amount of the input image that is converted to grayscale. It is specified as a {{cssxref("<number>")}}  or a {{cssxref("<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 {{Glossary("interpolation")}}  is 0. The default value is 1.

Formal syntax

{{CSSSyntax}} 

Examples

Examples of correct values for grayscale()

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

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

Specifications

{{Specifications}} 

Browser compatibility

{{Compat}} 

See also

The other {{cssxref("<filter-function>")}}  functions available to be used in values of the {{cssxref("filter")}}  and {{cssxref("backdrop-filter")}}  properties include:

• {{cssxref("filter-function/blur", "blur()")}} 
• {{cssxref("filter-function/brightness", "brightness()")}} 
• {{cssxref("filter-function/contrast", "contrast()")}} 
• {{cssxref("filter-function/drop-shadow", "drop-shadow()")}} 
• {{cssxref("filter-function/hue-rotate", "hue-rotate()")}} 
• {{cssxref("filter-function/invert", "invert()")}} 
• {{cssxref("filter-function/opacity", "opacity()")}} 
• {{cssxref("filter-function/saturate", "saturate()")}} 
• {{cssxref("filter-function/sepia", "sepia()")}}