Definitions of crimson:

• noun:   a deep and vivid red
• verb:   turn red, as if in embarrassment or shame
• adjective:   characterized by violence or bloodshed

  Example: "Writes of crimson deeds and barbaric days- Andrea Parke"

• adjective:   (especially of the face) reddened or suffused with or as if with blood from emotion or exertion

  Example: "Crimson with fury"

• adjective:   having any of numerous bright or strong colors reminiscent of the color of blood or cherries or tomatoes or rubies