"Custom color" in the chart refers to a color that's not one of the preset color options. In other words, you have to enter a hex code to change your name to that color. The pie charts below only show individual colors with a frequency of 0.5% or higher. 
The rainbow slice represents the colors not shown in the pie chart, not the "Other" row in the table.
These are the 19 preset color options.
#F04BEC - rDrama current theme color and default color
#FF459A #FF66AC - rDrama previous default colors (#805AD5 was also briefly the rDrama theme color)
#805AD5 #62CA56 #38A169 #80FFFF #2A96F3 #EB4963 #FF0000 #F39731 #30409F #3E98A7 #E4432D #7B9AE4 #EC72DE #7F8FA6 #F8DB58 #8CDBE6
#F04BEC was newly added on July 11, 2024. The color #FF66AC was removed over a year ago (June 7, 2023) and added back the same day #F04BEC was added.
rDrama
Compare the stats from July 11, 2022
Total users: 26,762
Default color: #F04BEC (pink/magenta)
Default color (pink) names: 22,089 (82.54%)
Non-default color names: 4,673 (17.46%)
Custom color names: 721 (15.43% of non-pink names, 2.69% of total users)
Our of our 26,762 users, 22,089 users, or 82.54%, have the current default name color #F04BEC (pink/magenta), which has been the default color since July 11, 2024.
This leaves 4,673 users (17.46%) who chose other colors. Purple comes out on top, just narrowly beating red. #805AD5 is the name color of @Aevann
and the same shade of purple used by Ruqqus. 
The beautiful red (#FF0000), once in first place, is now in second place. The red menace may not be winning, but it is still strong. White and black (#FFFFFF and #000000) are the most common custom colors. #21262D (#21262D) is the color of the midnight theme, the default theme of WPD and the former default theme of rDrama. Users who chose it like @whyareyou were trying to be invisible! With one more user than last time (4 compared to 3), #696969 is still not popular, but still common enough to show up on the chart (there were also 4 users with that color on WPD).
All users who had the previous default pink color (#FF459A) had their names forcibly changed to #F04BEC. Only 7 users changed their names back to #FF459A, and the default pink even before that, #FF66AC, has only 2 users (not on the chart). The third least chosen of the preset options is light blue (#8CDBE6).
The lovely @TwoLargeSnakesMating (we still miss you, Snakes) made a previous post with rDrama's name color statistics on July 11, 2022. How do those statistics compare? The colors are ordered slightly differently, but there doesn't seem to be much difference. While red used to be more common than purple, purple is now very slightly more common than it. 77.2% of rDrama used to have the default name color, and now it's 82.54%. I don't have data for users active in the past week.
As a redname, I love my fellow rednames, but my name color is actually #f22;/* (#FF2222). I made it paler to try to make it more visible on the midnight theme. I don't know if it had the intended effect.
I'm probably the only one on rDrama with a name color that isn't a valid hex code (#f22;/*). I changed it before it was no longer allowed. The /* indicates the start of a CSS comment. The only effects are making my name unbolded on the desktop site and making my name change to the color of the previous speaker in chat. My name changes back to red when I refresh the chat page. Sometimes it shows up as the theme color (mine is green on rDrama).
Here are the links to the comments in the first screenshot
WatchPeopleDie
What about our sister site WatchPeopleDie.tv? 
Total users: 2,428,237
Default color: #805AD5 (purple)
Default color (purple) names: 2,393,153 (98.56%)
Non-default color names: 35,084 (1.44%)
Custom color names: 3,212 (9.16% of non-purple names, 0.13% of total users)
As all of you know already, the gore site is a lot more popular than our niche drama site. Among WPD's 2,428,237 users, the default color purple (#805AD5) is overwhelmingly the most common color, with 2,393,153 users (98.56%). Most of those 2.39 million users probably abandoned their accounts immediately.
This leaves only 35,084 users (1.44%) who selected a color besides purple, a significantly smaller percentage than rDrama. Red (#FF0000) is, of course, the most common color option for them. Very suitable for a site about death. Two different shades of pink (#FF459A and #EC72DE) come in at second and third. How cute! 
rDrama's former default color #FF66AC is well-appreciated, at 19th place with 73 users. Like on rDrama, the most common custom colors are black and white. Blue (#2A96F3), WPD's previous default color up to around August 24, 2022, comes in at 8th place. Various shades of light pink/peach and dark red take up places 21-28. @MAGAshill's name color #DC143C has some popularity, with 11 users using it. Ten users thought #B00B69 was a funny color (but none on rDrama did).
Teal (#3E98A7), pink (#FF66AC), and magenta pink (#F04BEC) are the least used preset options.
Like on rDrama, my own name color on WPD is #FF2222. I changed it from #FF0000 to #FF2222 on December 27 to match my rDrama name color. I kind of miss the vibrance of pure red now.
In May, I made charts of the name colors of users who voted on WPD's top post, Gary Plauché shoots his son's rapist by AFX. The results were fairly similar, but as you would expect, the percentage of purple names was much lower. I don't know if the data is correct or not.
https://watchpeopledie.tv/@Jandice/wall/comment/3920509#context
Thank you @Aevann for providing the data for this! And yes, that is a link to the unwholesome death site with a login wall.
rDrama - https://pastebin.com/raw/Y7xuWgpj
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