The brightness() CSS function applies a linear multiplier to the input image, making it appear brighter or darker. Its result is a <filter-function>.

brightness(amount) 

brightness()

The brightness() CSS function applies a linear multiplier to the input image, making it appear brighter or darker. Its result is a <filter-function>.

Syntax

brightness(amount) 

Parameters

amount

The brightness of the result, specified as a <number> or a <percentage>. A value under 100% darkens the image, while a value over 100% brightens it. A value of 0% will create an image that is completely black, while a value of 100% leaves the input unchanged. The lacuna value for interpolation is 1.

Examples

Setting brightness using numbers and percentages

brightness(0%)   /* Completely black */ brightness(0.4)  /* 40% brightness */ brightness(1)    /* No effect */ brightness(200%) /* Double brightness */ 

Specifications

Specification
Filter Effects Module Level 2 # funcdef-filter-brightness

See also

<filter-function> blur() contrast() drop-shadow() grayscale() hue-rotate() invert() opacity() saturate() sepia()

Last modified: Aug 12, 2021, by MDN contributors

Select your preferred language English (US)EspañolFrançais日本語한국어中文 (简体) Change language