David Eldersveld walks us through the Power BI color picker:
The new color picker allows colors in RGB format in addition to the hex color format that Power BI has used exclusively until now.
The new one also easily allows users to choose from a wider selection of shades and tones. This builds upon the simpler selection of hues and tints in the original.
In case you don’t know what David means, there is an excellent explanation of each term.