Both Uses

tinged
in
Crime and Punishment, by Dostoyevsky
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His face, bloated from continual drinking, was of a yellow, even greenish, tinge, with swollen eyelids out of which keen reddish eyes gleamed like little chinks.†
Chpt 1.2 *

tinge = a slight amount; or to contain a slight amount
Of course he knew that Sonia's position was an exceptional case, though unhappily not unique and not infrequent, indeed; but that very exceptionalness, her tinge of education, her previous life might, one would have thought, have killed her at the first step on that revolting path.†
Chpt 4.4

Definitions:

(1) (tinged)
with a slight amount

(If an amount of what is not clear from context, it is typically of color.)
(2) (meaning too rare to warrant focus)