grayscale()

{{CSSRef}} 

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

{{EmbedInteractiveExample("pages/css/function-grayscale.html")}} 

Syntax

grayscale(amount)

Parameters

• amount
  • : 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. If the grayscale() filter is present with no parameter, the default value is 1. The initial value used for {{Glossary("interpolation")}}  is 0.

Formal syntax

{{CSSSyntax}} 

Examples

Examples of correct values for grayscale()

grayscale(0)     /* No effect */
grayscale(.7)    /* 70% grayscale */
grayscale(100%)  /* Completely grayscale */

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()")}}