"In terms of color, apples can range from green (like granny smith) to yellow (like golden delicious), to red (like empire and gala), and often a mix of colors (like honeycrisp)," Kelley Springer ...

We've all noticed the pervasive use of reds and yellows in restaurants, especially fast food chains, so there must be a good reason why. Here's what we know.

To help the 13 million Americans who are color blind, stoplights are always arranged with red on top and green on the bottom. Given the sophisticated technology and engineering time spent on ...

From left to right, red, green, gray and yellow panels deployed at the high elevation of the McMahons Point seawall, Sydney Harbor. The façade of this seawall, visible in the background, was ...

“In terms of color, apples can range from green (like granny smith) to yellow (like golden delicious), to red (like empire and gala), and often a mix of colors (like honeycrisp),” Kelle… ...

Another tradition associated with this observance are the traditional Black History Month colors of black, green, red, and yellow. These colors were not chosen by random or just for their look.

Powered by the electricity from the city’s trolley line, engineer James Hodge’s invention featured two lights: red and green, the colors long used by railroads.