1980s KTM frame color?

It's a real tricky color and depends on the year. I think it was more Orange in the early/mid 80s and then more reddish in the later 80s.

For powder coating my hubs and frame I used a color called something like traffic safety red. It's #3020. I know some guys who have used this on building Chesterfield bikes. But here's what I'd like to point out....I used an original Tecnosel seat cover that was more Orange. Then the graphics I got from EVO were more red. I didn't think it looked too bad...but then my perfectionist wife pointed out that I had all these different colors going on. So I would suggest getting your graphics and seat together first and then matching the powder coating, or getting a new replica seat cover to match the graphic color...or have the graphic color adjusted to match your seat.

The funny thing is though I looked through tons of old pictures from '89/90 and it was the same deal...Broc Glover, Trampas Parker and all the guys had Tecnosel seats that didn't perfectly match the graphic colors. Anyway..good luck. I think when I wear out my decals I may swap it up and do a 91 white and mint look for fun.

Cool. I built this retro '87 style KTM 85 in 2006 but I can't remember what color I used!

RAL 2002 Blutorange is a popular choice for guys restoring 80's KTMs. I have a 1986 MX250 and searched in a group I'm a member of on Facebook (KTM Vintage Owners Club) and RAL 2002 seemed to have the most endorsement

Thanks for posting that paint code! (RAL 2002) I found the paint to restore some of my 80's KTMs in spray cans here for $14.95 a can:
https://www.lvppaints.com/RAL-2002-12-Oz-Touch-Up-Paint.html