Adding hex tab to color picker
On my MacBook Pro several years ago, I downloaded an app or utility that enabled a Hex tab on the color picker that particularly appears in MS Office apps, but I believe in other apps, too.
On my MacBook Air, running 10.11.4, I cannot figure out how to do the same.
I see lots of apps in the App Store that can identify a hex number in a pixel, but I want to be able, not to necessarily IDENTIFY hex colors, but choose them within apps. I already know what Hex numbers I want to use, I want to be able to choose them, in Word, for example.
How can I do that?
MacBook Pro, OS X Yosemite (10.10.3)