One who bears a flag; an officer or a soldier who carries the colors.(noun)
The Century Dictionary (Public Domain)
Use "color-bearer" in a sentence
"While America honors the legacy of civil rights color-bearer Reverend Martin Luther King Jr., it is ironic that President Obama betrays his memory."
"In the assault on Fort Wagner, when the color-bearer was shot down, Sergeant Carney rescued the Union flag."
"Their officers kept their men from firing, however, but meanwhile a single-handed contest had begun behind me, for on looking back I heard a Confederate soldier demanding my battle-flag from the color-bearer, thinking, no doubt, that we were coming in as prisoners."