Many basements depend on electrical lighting for illumination and the type and number of bulbs is a huge factor to consider. Testing, as you are, will provide you the best means to choose the final color.
With adequate light, color can be applied. We have used a variety of accent color to define spaces in ours so, yes, go for it. Brown and blue co-exist in nature.
Here’s a tour of ours showing several colors.
https://youtu.be/3FqMEqaf0-I
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