Wiktionary
a. Somewhat light in colour.
Usage examples of "lightish".
It had a lightish brown carpet, red woolen curtains, leather armchairs, and one big window that looked out to the stable yard.
In the two photos I have of her on my desk, her lightish brown hair is dark from just-taken showers.
A rather pale, stiffish-built man, lightish brown hair and moustache, dressed in a dark suit.
Charles was about my own age, rather like his sister, only that his eyes were blue, and his hair a lightish brown.
My eyes had become adjusted to the gloom and I could now see clearly the lightish road bounded by the formless obscurities of the ditch on either side.
His hair was possibly a lightish brown, windblown and just long enough to brush his collar.
Dorothy was a rather little woman, with lightish auburn hair, a large and somewhat heavy forehead, fine gray eyes, small well-fashioned features, a fair complexion on a thin skin, and a mouth that would have been better in shape if it had not so often been informed of trouble.
Frantz, tall with a pale, sallow face under lightish red hair, had a look about him like that of a person up for sentencing: part defiant and part scared.
His hair was of a good lightish brown, and not worn after any fashion.