Traffic sign colors mean

a red: Indicates prohibition, stop, danger, prohibition signs for the border, background, slash, slash is also used for the fork symbols and symbols, warning linear induction underlying background and so on.
b yellow or fluorescent yellow: indicates a warning, a warning sign for background.
c Blue: Indicates instructions to follow for Traffic signs of the background; said names, routes, driving directions and other information, for general road guide signs in the background.
d Green: Indicates names, routes, driving directions and other information, for highways and urban freeway guide sign in the background.
e Brown: tourist areas and attractions, said the project's instructions for tourism logo background.
f black: for signs of text, graphics, symbols and some signs border.
g white: background, text and graphic symbols used to mark the border and some signs
h orange or fluorescent orange: Warning for road work area, guide signs.
i fluorescent yellow green: Indicates a warning for attention to pedestrians, children pay attention to warning signs.