Undertone
Part of speech: noun
Definition: an auditory tone of low pitch or volume an implied meaning; an undercurrent a pale colour, or one seen underneath another colour
Tinge
Part of speech: verb
Definition: to add a small amount of colour; to tint
Part of speech: noun
Definition: a small amount of something, especially of an added colourthe degree of vividness of a colour; shade, hue or tint