What is the color associated with lukewarm?

I'm designing a web application that crowdsources user response to another user's initiative (or project idea). The overall user response to the initiative is represented using a status component with 3 states: Warm, Lukewarm, Cold (a Warm response is a more well-received response).

I'm using #FB6B7B for warm, #45CBE5 for cold. However, I am unsure of what color to use for lukewarm. May I ask what is the color associated with lukewarm in the eyes of the general public?