Sign colors and shapes — Hawaii Permit Test

On Hawaii's traffic signs, red indicates that an action is prohibited.

A driver who cannot read a sign's color misses the meaning when the words are hard to see.

The Color Red indicates that an action is prohibited.

Yellow on a sign warns of hazardous or dangerous conditions, and almost always appears on a diamond-shaped sign.

A driver who reads a yellow sign as mere information keeps full speed into the hazard it warns of.

The Color Yellow indicates a warning of hazardous or dangerous conditions.

Black and white signs indicate a required action.

A driver who takes a black and white sign as advice skips an action the law requires.

The Colors Black and White indicate a required action.

Black and white signs are always rectangular in shape.

Knowing the shape lets a driver tell a rule sign from a warning sign even before reading it.

Black and white signs are always rectangular in shape.

Green, blue and brown are used on guide and information signs, mostly rectangular ones.

A driver who mistakes a green guide sign for a rule can brake hard for nothing in fast traffic.

The Colors Green, Blue and Brown are used on guide and information signs.

On a traffic sign, what does the color red indicate?

An action is prohibited. A driver who cannot read a sign's color misses the meaning when the words are hard to see. State of Hawaii Driver’s Manual, p.43: “The Color Red indicates that an action is prohibited.”