Color The color of an object was its property of producing different sensations on the eye as a result of the way it reflects light . The planet of Felucia hosted many translucent life - forms that colored the sunlight as its beams penetrated their skin . , , , and were examples of colors . In technology . The color of a Jedi lightsaber ' s blade was defined by its kyber crystal , which was harvested from the Crystal Cave on Ilum . A lightsaber crystal was colorless until it was found by a Jedi youngling , where the youngling would then become attuned to the crystal and the crystal would display its color . Apparently , this is what governed the colors of Jedi lightsabers . A Jedi ' s lightsaber blade was usually green or blue ; other colors were possible but rare , such as Mace Windu ' s purple - bladed lightsaber . Meanwhile , the process of bleeding resulted in the crimson color seen on lightsabers wielded by dark side users . Scavenger s on Jakku noted the differences in color of various starship fuels spilled from the remains of ships that fought during the Battle of Jakku . Some of these fuels could be dangerous to their health . Red and purple denoted strontium and rubidium , respectively , with both being highly poison ous if breathed in . Green indicated the presence of barium , which was also poisonous but could be handled with extreme care . The appearance of chrome color in the sand meant rhydonium had spilt . Other fuel components were less hazardous , such as gold - colored iron , blue - colored copper , orange - colored calcium , and yellow - colored sodium . In culture . In the galaxy , colors were often culturally significant . For example , the color red was associated with diplomatic immunity under the Galactic Republic . However , the color red was sometimes regarded as intense and aggressive . For that reason , the Sith wielded red lightsaber blades that represented their destructive view of the Force . Nevertheless , the members of many Force - worshipping sects native to Jedha donned scarlet vestments . Likewise , the white color of clone trooper armor signified an honorable symbol of defense before becoming skewed into one of a faceless icon of conformity under the Galactic Empire . In the days of the Old Republic , silver was used as a status symbol for royalty , as residents of Naboo used chromium to cover their fighters and cruisers . All language s combined , there existed forty billion , eleven million , seven hundred forty - two thousand , nine hundred and eighty - three accepted synonyms for the color blue . In Galactic Basic , known shades of blue included ao , aqua , and azure . The Galactic Empire favored muted colors of gray , white and black and tried to redesign things in this color scheme wherever possible . Sabine Wren was not in favor of this practice and used graffiti to provide bursts of brighter color . The flight suits worn by the starfighter pilot s of the Resistance were dyed in a hue known as " interstellar orange . " Each group was also designated by various hues such as Red , Green , Blue , and Gold Squadrons , along with their leaders . On Tatooine , where the sport of podracing was common , racers wielded various colors on both their vehicles and flags to symbolize their personality , heritage , or simply what appealed to them .