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).
You donât say what you want to mix this brown for. There are infinited numbers of dark brown so letâs say you want to make a dark brown that comes close to the color of walnut brown furniture. start with Raw Umber, and add a touch of Sepia. If the brown you want to make has a bluer tone to it, add a touch of Ultramarine Blue.