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[happymonster]

If Shadow Colours outside in the day time should have a blue tint, does that mean that shadows inside when completely lit by artificial lighting should have more of a orange or yellow hue?

[1982]

If Shadow Colours outside in the day time should have a blue tint, does that mean that shadows inside when completely lit by artificial lighting should have more of a orange or yellow hue?

Depends of the color of the artificial light, and especially its K-value unless we talk about  colored light by purpose (which I assume).

[J. R. Hill]

Well technically, shadows aren't blue, it's that everything that's lit is tinted slightly yellow-orange by the sun.  (thus shadows seem indigo-bluer in comparison)  With a standard lightbulb, the same tint is going to be there, but a little more drastic because the light source is dimmer.

[JasonPickering]

One thing we always did in painting class was contrasting temperatures also. If we had a warmer color like a nice yellow for a light source giving us a warmer colored highlight, we would have a cooler colored blue shadow. this also works the other way, cool lights warm shadows. I would also suggest against using pure blacks unless you need too. there are no pure blacks in most of the world.

[anonymous]

Try painting an egg in different light.  You'll notice there's a lot more that's going on than just a white [#FFF] egg.  It will be tinted green, or yellow, or blue, or red, not plain white.   

[JaJitsu]

I don't think you really need to get so technical with it. Pick colors that look good. I usually try to cool my shadows and warm my highlights.

[PompiPompi]

Well, the reason direct light is warmer and shadows are cooler, is because direct light comes from the sun which is more of a yellow light. Shadowed areas are not completely dark, they don't have much of direct light but they have ambient light.
Ambient light usually comes from the atmosphere, or the sky, which is kind of bluish. That is why the shadow area have cooler colors, because it comes from the sky.

[J. R. Hill]

Well technically, shadows aren't blue, it's that everything that's lit is tinted slightly yellow-orange by the sun. 

Blue sky adds blue ambient to shadows.

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