In Agents of S.H.I.E.L.D. season five, there are many Kree individuals. Most minor and background characters are "regular" all-blue Kree. However, the major Kree characters all have distinctive unique facial pigmentation - symmetrical light patches and black areas around the eyes. In particular Kasius, Sinara, Faulnak, and Taryan.
Out of universe, this serves to distinguish the named characters and make them easier to pick out and recognise. Is there any in-universe explanation anywhere? Are they wearing Kree make-up, have had some cosmetic procedure, or does their skin just look like that?
Kasius in particular is shown to be borderline obsessed with physical beauty. This could be partially a result of his own "imperfection", or alternatively could explain why he bothers with cosmetics to enhance himself.
The only other Kree I've spotted (across AoS and the MCU films up to Avengers: Endgame) who arguably wears cosmetics is Ronan in Guardians of the Galaxy - the black pigment is congealed Xandarian blood.