1 Coil (chemistry), a tube used to cool and condense steam from a distillation.  Coil spring, used to store energy, absorb shock, or maintain a force between two surfaces.
Umber RGB Color Code: #635147. The hexadecimal RGB code of Umber color is #635147. This code is composed of a hexadecimal 63 red (99/256), a 51 green (81/256) and a 47 blue component (71/256). The decimal RGB color code is rgb(99,81,71).
The designation came from the U.S. Army's coloring code Olive Green 107 and Olive Green 507, which were shades of dark green, the OG-107 being cotton and OG-507 polyester-cotton blend introduced in the early 1970s. Regardless of the fabric, the two shades were almost identical.