The color is blue. Head circumference is about 40cm. Depth is 12.5cm (excluding the pointed part). Since it's loosely knitted, it should be fine even if the head circumference is a little larger. It's designed to be worn shallow, with the ears out, covering the line above the ears. Each item is made with care, but as they are handmade, please refrain from purchasing if you are concerned about variations in the knitting pattern. m(_ _)m