Former Vietnamese capital, or a tint (3)

I believe the answer is:

hue

(Other definitions for hue that I've seen before include "Shade of colour; Vietnam port" , "General hubbub - . . . and cry" , "Colour or tint" , "General outburst of alarm or protest - . . . and cry" , "Shade, aspect; Vietnam port" .)

I've seen this clue in the Universal.

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