Is there a way to "mix" colors using vectors?

Question

Here's my problem: I'm not a very technical and detailed artist, and I'm not trying to be. My works is pretty cartoonish actually, so I never dabble with the paintbrush and always use vectors. Anyhow, I was wondering, if I want to draw, using vectors, a guy with half of his legs in a pool, and half not, how would I go about coloring that? I mean, I'm intending to make the man pinkish, and the water light bluish, but how can I achieve the mixture, a combination of the two, for the half of the legs underwater? I'm not seeking color recommendations (for the legs) by the way. Is there a way to combine two colors to achieve an in-between ground?

Answer 1

Put the legs on one layer and put the water on another layer above/in-front and adjust the opacity of the water-layer to let some of the leg-layer show through.  If you don't want to construct your cartoon using layers which is one of Photoshop's main benefits, you can figure out what color to make the wet leg with by creating a swatch of leg color in one layer and then make a water-colored layer in front/above it and adjust the opacity then use the eyedropper to sample the color of the combination.
Of course in a real situation with the observer above the level of the water looking through it at an angle, the leg would become bluer the further into the water it went because there would be more water between the foot and the observer than say the knee and the observer and you'd want to make a gradient of color or gradient of transparency using a layer mask with a black-to-white gradient in the mask instead of just one opacity setting, and there would also be some size and offset of the leg due to refraction of the water, but as you said you're not a detailed artist.