Also, is that yellow print in PETG? I have a translucent red that exhibits that exact same behavior. I ended up with a super light opaque pink that looks like it's full of air bubbles at 220c,but at 250c (and no fan) and higher layer heights (.25mm) it keeps that deep translucent color. If it's PET, try printing without a fan and slow way down (I have to print pet at 15-30mm/s for good prints) also I try to use the fan only for bridges or fine detail/overhangs