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Well, actually, they aren't. The International Tennis Federation (ITF) categorizes the color as "optic yellow.” Incidentally, tennis balls actually used to be black or white. When tennis started to be televised in color in the late 1960s, it was hard for viewers to track the ball on their screens, so the ITF came up with the bright greenish-yellow to make it easier on their eyes.

They're rare today, but according to ITF rules, white tennis balls are technically still allowed—a relic of pre-TV times.

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Related Questions

What color is the tennis ball before its green?

yellow i think


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The majority of golf balls are white, but there are some yellow balls which are for evening play and are used by seniors. Paula Creamer sometimes uses a pink ball.


What is a yellow tennis ball made out of?

fabric


Co lour of a tennis ball?

Bright yellow.


What color would a green tennis ball appear in green light?

Green.


Does a tennis ball reflect light?

It does reflect light, as anything does that you can see (a yellow tennis ball reflects yellow light and absorbs the other colors). However, it will not show you your reflection.


What is the most visible ball colour for all the different surfaces and conditions in tennis?

the most visible ball in tennis is red yellow.


What is materiel of a tennis ball?

rubber and green fuzzies


Why is a tennis ball yellow?

Tennis balls are not generally yellow. They are usually green. A tennis ball can become yellow if it is left out in the sun for a very long time (months and months), and will turn yellow due to sun exposure.


What color would a green tennis ball appear in white light?

Green.


Who invented yellow tennis balls?

I believe Rene LeCoste invented a hand-cranked machine that propelled tennis balls, while Bob McLure reversed the motor on a vacuum cleaner to create the first commercially viable ball machine in 1970.


The boxes of tennis ball contains one white and two yellow the second box contains three yellow and two lime green a ball is taken at random from each box find the prob that both balls are yellow?

I am thinking the anser is 5/8... hope it helps