For those who care about such things: @msuchard and I created a 5-color palette for plots that should go well with the OHDSI logo colors. The palette has been checked for color blinded, but it is hard to do that conclusively so let me know if you have issues distinguishing the colors.
You can find the palette here.
To use in R:
colors <- c("#336B91", "#69AED5", "#11A08A", "#FBC511", "#EB6622")