From Wikipedia, the free encyclopedia. Primary colors (or primary colours) are sets of colors that can be combined to make a useful range of colors. The primary colors are those which cannot be created by mixing other colors in a given color space. For subtractive combination of colors, as in mixing of pigments or dyes for printing, the primaries normally used are cyan, magenta, and yellow, though the set of red, yellow, blue is popular among artists.
Typical costs: 1  A driveway gate costs $1,400-$3,200; powering it to open by remote control costs an additional $550-$4,500 -- bringing total costs to $1,950-$7,700. 2  Single-panel iron, steel and wood gates cost $1,400-$2,100. 3  Dual-panel iron, steel and wood gates cost $1,800-$3,200.
Gate automation kits that swing double-panel gates open cost $900-$4,500. Kits that use AC power, have smaller motors and do not include access controls cost the least. Kits that use solar power, have heavier motors to open bigger gates and include access controls are the most expensive. Gate automation kits that slide gates open cost $550-$2,150.