journals.plos.org
Colour As a Signal for Entraining the Mammalian Circadian Clock
Environmental measurements and physiological recordings reveal that mice not only use changes in the intensity of sunlight to entrain their circadian clock, but also employ blue–yellow color discrimination to detect spectral changes associated with...
Finally, the use of color to elicit effects in the nervous systems through the retina are being documented!!!
The whole field of syntonic optometry has been around almost 90 years, and has been saying this.
The field of color puncture as an advanced accupuncture using colored lights has also been around.