白 and 黒: colors and the area colored
Learn white and black while distinguishing a background, lettering, and partially painted areas.
White and black
白, read しろ, means white; 黒, read くろ, means black. 白い紙に黒い字を書きました。 means writing black characters on white paper.
この服は白ではありません。 says that these clothes are not white. It does not necessarily make them black.
Color combinations
白の上着 and 黒の上着 mean a white jacket and a black jacket. The adjective forms 白い上着 and 黒い上着 are also possible.
白と黒の写真 describes a photograph in white and black. It does not restrict the subjects' actual colors to those two colors.
Scope and changes of state
箱の内側だけ黒く塗りました。 means painting only the inside of a box black. だけ limits the area painted.
髪が白くなりました。 says that someone's hair turned white. The sentence does not identify deliberate dyeing or an agent who did it.
In 箱の内側だけ黒く塗りました, was the outside painted black too?
Show the answer and why
No. The black painting is limited to the inside.