Rose is the tincture of rose or pink as used in heraldry.
Rose has been introduced in Canadian heraldry from the late 20th Century. It is considered a colour along with azure (blue), gules (red), vert (green) and sable (black). It is slightly similar to the tincture carnation which is used in French heraldry, but not quite, as carnation is the skin beige used for human skin depiction, while rose is a brand new heraldic colour, much closer to pink.
The colour features e.g. in the coat of arms of former Canadian prime minister Kim Campbell. It is yet to be seen, if the tincture will be used in any arms in other countries.