Hex Invaders will teach you the logic behind hexadecimal colors. The code is really just based upon RGB values. Once you learn that, the game hands you a blaster, and sends aliens your way.

Hex codes are especially useful for matching colors in an Illustrator document to those on a Web page, as both HTML and CSS use hexadecimal codes to specify colors.

Hexadecimal format allows us to instruct a computer to display a color using three or six characters. For example, #000 will produce black. But how many ...

I’m not saying Charity’s colors are wrong, but I am saying that trying to get hex codes for star colors is like writing down the notes to Beethoven’s Ninth Symphony on paper.

Google is making a small but profound usability tweak by adding an eyedropper tool to the color picker in Docs, Sheets, Slides, and Drawings.. Today, the color dropdown in those four apps is split ...