Pls help- Colouring!!

[Astro0]

Hellooooo
So i'm not that great at colouring, and theres one thing that i just CANNOT wrap my head around!!
and that would be the dreaded (at least for me) coloured lighting

Spoiler: some references so you know what i mean, one is a litttttle NSFW

I cannot find any tutorials on what colours things become under coloured light, and i really want to be able to work it out for myself without using tutorials all the time!

I'm not sure if i'm being very clear haha, but i mean like what colour is skin under blue light? green light?? how do i do scenes where things are different colours but its under red light? but still make it look like they are the colours they are?

pls send help, i really struggle determining colours, and any help would be greatly appreciated!

Thank you!

if you need more clarification on what exactly i'm asking, just lemme know haha

 

[KainAronoele]

WHY HAS NO ONE HELPED!!!

I myself have never done stuff like this, but my guess is to either color the skin color, then do a (whatever the color light is) tint over it. Suggestion, when completed with the work, go to Picmonkey.com and find the tint option, and brush it on where it is (if you're up to doing that kind of stuff)
Or, since the light seems to pretty much look like your skin is dyed, color the still skin colored parts the skin color, and the lightings color the rest, then of course blend where they meet so it kinda fades back to the skin color (preferably do the lighting in a layer over the skin, then blend it towards the skin, if that makes sense)
I wish I could show examples, but my art isn't nearly as good as yours. If I can find a decent digital piece I've done in the past, I can try to show you those 2 examples.

Hope that kinda helped..? > .<



EDIT: Sorry for the bad examples, but here's kinda what I meant.

Spoiler

Original

Art program coloring

Picmonkey tint

 

[ssvv227]

what i would do (in photoshop; sorry i've never used other programs but i'm guessing it would be similar) is to lay out the face with the shadows and whatnot but without the highlight; then you can create an overlay layer and add very saturated colours onto the face as the coloured light source; then just add lighter colours if the light source is not light enough