Surbhi Shankar 01012632
a. As there was no color restrictions, I used three different colors (Red, Green and Blue) to represent the Groups.
b. These are the colorblind safe colors used. These entities can be differentiated even if the colors are replaced with grey scale. That is the advantage of having colorblind safe color palette.
c. Photocopy safe colors are used so that the brightness, intensity and lightness of the colors used are uniform. Hence, these I felt that these colors would be a good choice.
References:
/weiglemc/bdc0474429e6567bc320
/enjalot/211bd42857358a60a936/example/
http://blockbuilder.org/
https://bost.ocks.org/mike