Colour cast is a tint of a particular colour that affects your image in such a way that some of all colours in it will not correspond to what you expected them to be.
Below is my video tutorial on what I reckon are the best two techniques to remove colour cast in Adobe Photoshop.
Regarding the images I used as examples in the tutorial, the first one is a resort called Cancela do Porco that I shot on Pico Island in the Azores.
The second picture was taken in Italy and is a close-up of a painting in Galleria del Corso, Milan.
Feel free to play with the Before and After below to see the effect of colour cast removal.
It may look subtle to some, but it is actually quite a difference!
Over time, I got to learn that it is always a good idea to try one of the methods depicted in my tutorial on the photographs I take, even when they do not seem to be affected by colour cast.
It is surprising how our eyes get used to tones and contrast and, after a while, they find normal what a fresh eye would consider as very weird!
This actually holds true for any kind of post-processing.
If you liked my post and tutorial, please pick a time to like and share!