Fun fact: The background color of the default Discord profile picture varies depending on discriminator.
Based on the last number of your account's discriminator, you'd get a different color:
0, 5 = "blurple"
1, 6 = grey
2, 7 = green
3, 8 = yellow
4, 9 = red
Now, with Discord's plans to switch away from the "User#0000" username system, I can only wonder how things are even going to work should the change become permanent.
@lynxmic https://cdn.discordapp.com/embed/avatars/5.png you can change the number in the url from 1-5 to change the color