Antonyms of adj off-colour

1 sense of off-colour

Sense 1
indelicate, off-color, off-colour -- (in violation of good taste even verging on the indecent; "an indelicate remark"; "an off-color joke")

INDIRECT (VIA tasteless) -> tasteful -- (having or showing or conforming to good taste)

Similarity of adj off-colour

1 sense of off-colour

Sense 1
indelicate, off-color, off-colour -- (in violation of good taste even verging on the indecent; "an indelicate remark"; "an off-color joke")
       => tasteless (vs. tasteful) -- (lacking aesthetic or social taste)