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).
umber is a natural brown or reddish brown earth pigment that contains iron oxide and manganese oxide it is darker than the other similar earth pigments ochre and sienna in its natural form it is called raw umberwhen heated calcinated the color becomes more intense and the color is known as burnt umberhe color of the natural earth depends upon the amount of iron oxide and manganese in the clay umber earth pigments contain between five and twenty percent manganese oxide which accounts for their being a darker color than yellow ochre or sienna