Often when I’m designing/developing in the browser, I want to change a color just slightly. I usually want to make the color slightly lighter or darker. But when I’m working with hex codes, I haven’t found a good way of doing that without opening Photoshop (which takes about 20 years it seems like) or using the SASS lighten() and darken() functions or using the color picker in Chrome dev tools.
So, to try to get my head around how hex codes work, I made this little codepen. It’s a form that lets you build a hex code, one digit at a time, and then see the color that results from that hex code. Confusing? Try it out for yourself.