Mysterious grey will always give you that mysterious eyes. Let them read you, but not know you. It is commonly used in cosplay different kind of character such as Todoroki Shouto, Harlequin, Todoroki, , Arwen Lotr, Kakashi and Levi Ackerman.
ColourVUE? Basic creates simple colour change without any fancy looking designs. Comes in 4 subtle colour tones. The Basic Series is your secret for simple coloured eyes.