Color or light

Yes it is correct. I understand the science of it but can not easily put it into words. Sorry.

This should give you some answers:

http://en.wikipedia.org/wiki/Color

Should we go to electrons ?

When an incident electromagnetic wave falls on an atom, it absorbs it and if the energy is sufficient, goes to the next excited state (and there by storing the energy in forms of the heat energy) However if the incident em wave energy is lesser than the "quanta" required by the electron, then it just takes it and vibrates to give it back.

This given back energy may be reflected or progressively allowed to pass through the object (transparent/transluscent)

Thus you can see that the objects (atoms of) may absorb the lights selectively, And the rest of the light (unabsorbed) will seem to be the colour of the object.

Thus if the object absorbs all the colours except blue, it will look blue to us.

(as per long old grey memories, so check it up)

PS:

got this link

http://www.physicsclassroom.com/Class/light/u12l2c.cfm