Do opaque materials only reflect red?

Question

What colors do opaque colors reflect?

Answer 1

only red ones reflect red.

green ones reflect green.

And blue ones reflect blue

etc

To the others, all solid things are opaque, that doesn't mean they don't have a color. And a color means that they reflect that wavelength of light. A red object absorbes all others (or partially absorbes others) and reflects red light.

Answer 2

If a material doesn't absorb or reflect light, the only remaining possibility would be for it to transmit light.  This is just the opposite meaning of opaque.  For a material to be opaque, it must prevent the transmission of light through the material.  Materials can be opaque in one color and transparent in others, it just depends on the material.  So, the question is hard to answer because opacity and reflectivity are only 2 of the 3 possible interactions with light, the other being reflectivity.  This issues of opaceness and reflectivity are fairly distinct.

Answer 3

Opaque materials do not absorb nor do they reflect light. This is by the definition of opaque.