I'd be happy to play with the color combination a bit. That specific shade of red is listed in Keller Williams brand standards- it's a Pantone color number... sometimes computer monitors can make colors look different, but if you could let me know what it is that doesn't seem true about it, I'll upload some other reds :)
I have moved your design #36 to the first slot so you can make changes. The red color appears to have a pink tint to it on my monitor. See what you can do. KW also uses a burgandy color in their branding that might be an option.
I made the changes to the colors, but was unable to upload (we had a winter storm that kept knocking out our internet service). My apologies! Just let me know if you'd still like to see them.
I uploaded a few color variations using the burgundy and black. I think this color combination is much more striking- nice call :) Good luck and please let me know if you need anything else!