Color-by-numbers apps are really popular on the App Store right now, with four different apps rising to the top of the free apps chart. The apps have a combined 3.2 million downloads over the past ...

One trick is to vary the frame rate to alter the intensity of a color. However this affects the entire screen, so its effect on the number of useful colors is minimal. The second technique is ...

She can be reached by email. Carol Steen's father once corrected her about the color of the number five. That number is yellow, she told him. "And my father said, 'No, it's yellow ocher.'" ...