@media.light-level

light-level is a CSS media feature that can be used to check the current ambient light level.

Enumerated values

Value	Meaning
dim	The device is used in a dim environment, where excessive contrast and brightness would be distracting or uncomfortable to the reader. For example: night time, or a dimly illuminated indoor environment.
normal	The device is used in a environment with a light level in the ideal range for the screen, and which does not necessitate any particular adjustment.
washed	The device is used in an exceptionally bright environment, causing the screen to be washed out and difficult to read. For example: bright daylight.

Example

@media (light-level: normal) {
  p { background: url("texture.jpg"); color: #333 }
}
@media (light-level: dim) {
  p { background: #222; color: #ccc }
}
@media (light-level: washed) {
  p { background: white; color: black; font-size: 2em; }
}

Specifications

Specification	Status	Comment
Media Queries Level 4 The definition of 'light-level' in that specification.	Working Draft	Defered to Media Queries Level 5

Browser compatibility