Why do some people perceive a tennis ball, which is yellow by the sport's rules and regulation, as being green? What makes some people think the ball has a greenish hue as
![So my girlfriend just told me that tennis balls are green not yellow and now my mind is blown. : r/ColorBlind So my girlfriend just told me that tennis balls are green not yellow and now my mind is blown. : r/ColorBlind](https://i.redd.it/l55jm7c8nsb41.jpg)
So my girlfriend just told me that tennis balls are green not yellow and now my mind is blown. : r/ColorBlind
![Wilson Tennis on X: "Like if you think Tennis Balls are green Retweet if you think Tennis Balls are yellow https://t.co/EBNvJ0s5r0" / X Wilson Tennis on X: "Like if you think Tennis Balls are green Retweet if you think Tennis Balls are yellow https://t.co/EBNvJ0s5r0" / X](https://pbs.twimg.com/media/EIeugOVXsAAw-iR.jpg:large)
Wilson Tennis on X: "Like if you think Tennis Balls are green Retweet if you think Tennis Balls are yellow https://t.co/EBNvJ0s5r0" / X
![What color IS a tennis ball? Internet divided over yellow or green hue as debate sparks on social media - and even Roger Federer has weighed in | Daily Mail Online What color IS a tennis ball? Internet divided over yellow or green hue as debate sparks on social media - and even Roger Federer has weighed in | Daily Mail Online](https://i.dailymail.co.uk/1s/2023/08/09/22/74144061-12390761-image-a-15_1691616127966.jpg)
What color IS a tennis ball? Internet divided over yellow or green hue as debate sparks on social media - and even Roger Federer has weighed in | Daily Mail Online
![Price's Yellow Tennis Balls Type 2 ITF Standard UK Made 2 Tubes of 4 Balls : Amazon.co.uk: Sports & Outdoors Price's Yellow Tennis Balls Type 2 ITF Standard UK Made 2 Tubes of 4 Balls : Amazon.co.uk: Sports & Outdoors](https://m.media-amazon.com/images/I/71aVv1ooAhL._AC_UF894,1000_QL80_.jpg)