Why Are Street Signs Different Colors? (2024)

Street Sign Colors and Meanings

Street signs come in many different colors, making them difficult to keep track of. Knowing the differences between what each color means could be the difference between getting lost and arriving at your destination safely. Street signs are different colors because, to put it simply, they mean different things.

In order to help you understand why street signs are different colors, we are listing each color followed by their corresponding regulations. The color codes below are taken from the most up-to-date Manual on Uniform Traffic Control Devices (MUTCD) for Streets and Highways. This color code system should give you a strong understanding of how street signs were developed.

What Do White and Black Street Signs Mean?

The white and black color scheme is reserved for posted regulations. If you see one of these signs, they’ll likely also be in the shape of a rectangle or square. These shapes are meant to notify drivers of various regulations. Some examples of what white and black signs can be used for include:

  • One way
  • Keep right
  • Speed limit
  • No turn on red

What Do Blue Street Signs Mean?

Blue street signs are for road user services guidance, evacuation routes, and tourist information. Some examples of what blue signs can be used for include:

  • Fueling stations
  • Restaurants
  • Hurricane evacuation routes
  • Rest areas

What Do Brown Street Signs Mean?

Brown signs are similar to blue signs, but are reserved for recreational and cultural interest areas. Some examples of what brown signs can be used for include:

  • Trails or hiking locations
  • Theme parks
  • Historic buildings
  • Museums
  • Zoos

What Do Fluorescent Yellow-Green Street Signs Mean?

These signs are primarily used to warn drivers that there are pedestrians present or they are entering a school area. Some examples of what fluorescent yellow-green signs can be used for include:

  • School zones
  • Pedestrian warnings
  • Bicycle warnings
  • Playground warnings

What Do Fluorescent Pink Street Signs Mean?

These signs are unique in color and purpose. They are strictly used for incident management. Some examples of what fluorescent pink signs can be used for include:

  • Emergency scenes
  • Motor vehicle accidents

What Do Green Street Signs Mean?

These signs offer directional guidance to drivers. Some examples of what green signs can be used for include:

  • Light rail transit station ahead
  • Interchange exit
  • Roadway identification and mile markers
  • Destination distance

What Do Orange Street Signs Mean?

Orange signs are fairly similar to the pink signs with one major difference: orange signs are used for planned temporary events such as road construction and pink signs are used specifically for unplanned events like car accidents. Some examples of what orange signs can be used for include:

  • Road closed
  • Road work ahead
  • Men at work
  • Detour ahead
  • Construction ahead

What Do Purple Street Signs Mean?

Purple signs are solely for the purposes of restricting lanes to use by vehicles with register electronic toll collection (ETC) accounts such as:

  • E-ZPass
  • SunPass
  • FasTrack

What Do Red Street Signs Mean?

Red signs simply mean stop or prohibition. Some examples of what red signs can be used for include:

  • Stop
  • Do not enter
  • Yield

What Do Yellow Street Signs Mean?

Yellow signs are commonly permanent warning signs in areas where the driver needs to be informed of unexpected conditions. Some examples of what yellow signs can be used for include:

  • Signal ahead
  • Slippery when wet
  • Speed bump
  • Animal crossing
  • Dead end

The color of a street sign is an important factor when attempting to understand what that sign means. In some instances, the color of the sign is more important than actual message of the sign. For example, think about how many times you’ve seen a red octagonal sign and instantly knew that it meant “stop.” Even if you didn’t see the word stop on the sign, you’d likely still know what the sign meant for you as a driver. That is the power of knowing what each color represents.

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Why Are Street Signs Different Colors? (2024)

FAQs

Why Are Street Signs Different Colors? ›

A white background indicates a regulatory sign; yellow conveys a general warning message; green shows permitted traffic movements or directional guidance; fluorescent yellow/green indicates pedestrian crossings and school zones; orange is used for warning and guidance in roadway work zones; coral is used for incident ...

Why are street names different colors? ›

Usually, the color scheme used on the sign just reflects the local standard (for example, white letters on a green background are common throughout the US). However, in some cases, the color of a sign can provide information, as well.

What do different Colour road signs mean? ›

Red signs offer a warning of some kind, similar to the warning a triangular sign gives. Blue signs give you some kind of instruction, whether it's to do with changing your speed or making you choose a junction on a motorway. Green signs are to give directions and are there purely for information.

Why do signs have different colors? ›

The traffic sign colors and what they mean are there to help ease the driver into what they are seeing. Color coordinating and their shapes makes them easier to identify and remember what they are are telling the driver.

What's the difference between green and blue street signs? ›

Green signs give highway directions and guide you through highway interchanges. Blue signs list motorist services, like gas, food, and lodging. Brown signs direct you to public recreational areas, state and national parks, historical points of interest, and scenic sites.

Why are some street signs black? ›

Black signs indicate lane use, meaning that drivers can use the respective lane. They typically use white letters that contrast with the black background. As you can see, street and traffic signs use a lot of different colors.

Why are streets black and not white? ›

Asphalt's darker, heat absorbing color also allows it to help moisture evaporate faster both after a morning fog, or a heavy rainstorm. For this reason, using some form of pigment or even paint atop the surface of the asphalt to lighten it's color is not a viable option.

Why does LA have blue street signs? ›

In the mid 60's, an aluminum blade-style sign came in. Also white letters on black, they felt a little less like L.A. – and since they went up on new streets, they subtly segregated the new from the old. Then came a blue version of the blade, installed as older signs had to be replaced.

Why are some street name signs orange? ›

Temporary hazards, which are often used during construction projects often use orange signs with black text, while more permanent signage such as pedestrian areas often use yellow signs with black lettering to provide the highest level of visibility both day or night.

Why are some road signs black and white? ›

White rectangles

They all have black borders and generally use black writing and symbols to get their message across. Many white signs show directions on non-primary or local routes: more minor roads. As well as general locations, they are also used to point drivers in the direction of parking opportunities.

Why are some street signs red instead of green? ›

Warm colors are typically utilized in graphic design to generate a strong emotion. Thus, a large majority of advisory signs on the roads follow these guidelines. If a sign is directly commanding you to do (or not to do) something, odds are it is red.

Why are freeway signs green? ›

Green signs are guide signs. And green is considered a “cool” color. It's not distracting and generally won't surprise the driver upon seeing it. It blends in enough to be considered part of the scenery, but sticks out enough to notice when you need it.

What color are prohibited signs? ›

Prohibition safety signs (Red)

Prohibition signs are used to signify the prohibition of a certain act or event. These health and safety signs are required to be red.

What do the different color street lights mean? ›

Red light on: This tells drivers to stop. Green light on: This means the driver can start driving or keep driving. Yellow light on: This tells drivers to stop when it is safe to, because the light is about to turn red.

Why are some roads different colors? ›

The road color will tend to match whatever aggregate (rock) is used in the mix. Typically, the aggregate will be gray in color. There are some places that have reddish aggregate with a lot of iron in it. This will end up looking like a rust color.

Why do we have different shapes and colors for road signs? ›

Shapes matter

Not only does your brain interpret sign colors, but it also recognizes certain shapes as meaning certain things. Road sign shapes and colors together can a single mean meaning. Virtually every driver or pedestrian would immediately understand a red octagon as a stop sign even with no writing on it.

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