Examples from the Web for darkish
To the experienced eye the color of the egg indicates that it has died as it takes on a sort of pinkish or darkish tint.Ducks and Geese|Harry M. Lamon
He says those organisms are exceedingly minute, darkish or coloured granules, so small as to be immeasurable.
The plumage of this bird is darkish brown, the naked head being red.Western Bird Guide|Chester A. (Chester Albert) Reed, Harry F. Harvey, and Rex I. Brasher
The wrinkleless, too smooth skin of the alien was a darkish yellow.Star Born|Andre Norton
His face was clean-shaven except his chin, which carried a pointed, darkish beard.The Scalp Hunters|Mayne Reid