The way you handle color in your web designs is about to change. Perhaps you’ve been playing around with hexadecimal color values since you were a wee web-babe; if you were, get ready to to grow up fast. CSS3 has arrived, and your palette is about to get a whole lot bigger.
Compared to what’s coming, it’s sas though designers have been color-blind, working with only a small part of the chromatic spectrum. No, new hues will not be added to the rainbow.
What will happen is that color values will be defined in new ways, the entire spectrum of opacity levels will be added and gradients based on pure CSS rather than images will be thrown in, too.
Some forward-thinking websites, such as the impressive 24 Ways to Impress Your Friends, are already playing around with RGBa for text and background color effects—and the results are great.