help ukraine

We stand with Ukraine! If you're as appalled by Russia's abhorrent attack as we are, please support Ukraine and its people.

Color levels

On this page

Levels can correct the tonal range and color balance of an image.



'colorlevel.white' is set on a scale from 1 to 255, where 255 is the default.

White level increased


'' is set on a scale from 0 to 254, where 0 is the default.

Black level increased

Black and white together

Black and white levels can be applied at the same time:

Black and white levels changed

Pure white background

Levels can be used to obtain pure white backgrounds, desirable for ecommerce product photography. Below, Sirv turns an off-white background to pure white. Then it shows an automatically cropped version, using Sirv's autocrop feature:

Autocrop and white levels
Increased white levels
Autocrop and white levels


Sirv can generate a histogram of your image, to help you understand its tonal range. It analyses each pixel of your image and plots it as a chart. The chart's numerical range goes from 0-255, counting pixels of 0 as totally black and pixels of 255 as totally white.

'histogram' can be set as 'rgb' (for red, green and blue), or any of r/g/b separately.

Histogram of RGB colors

Was this article helpful?

Get help from a Sirv expert