Peacegirl, when you see a rose, what happens?
Is the rose red? No, it is not. “Redness” exists entirely in the mind, and it is called a quale. Multiple quale are qualia.
Now why does the rose look red? Here is the correct use of the word “wavelength.” Each color we see has a distinctive wavelength associated with it. When we look at the rose, the flower absorbs all of the wavelengths associated with colors OTHER THAN red. It reflects to our eye the remaining light with a wavelength that the mind interprets as the color red.
This would be IMPOSSIBLE if light was not reflected! Your writer has no ALTERNATIVE explanation of how we see color.
And, happy b-day!