Pinkish tint belly sometimes normal? (not shedding)

Do some morphs always have a pinkish tint to their belly, even when they are not shedding? I know it's not shed because she just shed last week (in 1 piece) and she was definitely pinker then. But I think this has been normal for her as long as I've had her. She's a het red axanthic pastel so I was wondering if that could be related. She's not quite 6 mo old.

Her UTH consistently measures 88-90 on top of substrate, 92 below, in her hide.

Hard to tell in the pic, but on further examination it's the color inside the hexagon patterns. The borders are white.

https://lh4.googleusercontent.com/-H...208_191430.jpg

I'm not extremely familiar with the red axanthic gene but I think it could be the fact it's het red axanthic. If I were you I would safely drop the temp down to 88-90in the hide

Sorry to clarify, I meant 88-90 on the surface of the substrate in the hide, and 92 measured by probe under the substrate on top of glass.