The mark consists of the word "haystack" in good times font, the letters "a" absent thier typical bars, the "c" in haystack is a rendering of a suture needle with blue or yellow suture thread attached to the needle with a characteristic curved shape.
The color(s) the word "haystack" in white, suture material at the end of the rendered suture needle in either blue or yellow. the color of the the rendered surgical needle is silver (stainless steel), background color is black but can also be neutral depending is/are claimed as a feature of the mark.