If you're talking about French tennis courts, the most famous one, Rolland Garros, is on a clay court, so the ground is reddish brown.
châtain is the name for a hair color (light brown, or chestnut- coloured). Châtains et courts means 'light brown and short (hair)'.
Short
In French, court means short.
and short .
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tennisseee courteee
French
The French Open is the only one of the four Grand Slam tournaments to be played on clay courts.
Noir is the color 'black' in French.
Sixteenth- and Seventeenth-century French courts
des cheveux noirs et courts
terrain de tennis