Electrify #4 is a slightly muted, medium blue with subtle, cool undertones and a satin sheen. (It almost looked like a "warm" blue.) The eyeshadow felt smooth, soft but not powdery, and blended out well on the eye. It had nearly opaque color payoff, but it seemed to fade after I applied it (without primer) so it never looked as vibrant on as it did in the pan. The color lasted well for seven and a half hours on me.