According to multiple sources, green light is the best color of LED light to help with headaches and migraines. Green light of a particular wavelength can minimize the intensity of migraines and even reduce the likelihood of an intense headache occurring in the first place. A 2016 study found that green light worsens migraines significantly less than all other colors of light and can even reduce headache pain by about 20% . Green light does not activate the retinal pathway, making it less likely to cause headaches. Other colors of LED light, such as blue, red, amber, and white, may worsen migraines and cause sensitivity in people with migraines. Therefore, it is recommended to avoid blue light and choose green light to help with headaches and migraines.