hey @Dion_McCormick and @AnsonHwang - thanks for posting and answering! Just noting that we had filed a bug for that incorrect tooltip, and the fix was released on Aug 4th with this changelog note: "Fixed an issue with code editor validation for color inputs in the Table component." 
Thank you both for surfacing.
Glad it worked already and besides the incorrect error in the UI you were generally unblocked in the meantime via Anson's response!