Seems to confirm it was available from the launch date and I distinctly remember a job for a company in Edam that had an early PC which had color graphics as well as one at a bank in Amsterdam that also did color (at very low resolution, but definitely color).
By '91 we were well into 486's and high res color (but not using IBM cards, but VGA wonder and the various Tseng cards were doing just fine).
https://en.wikipedia.org/wiki/Color_Graphics_Adapter
Seems to confirm it was available from the launch date and I distinctly remember a job for a company in Edam that had an early PC which had color graphics as well as one at a bank in Amsterdam that also did color (at very low resolution, but definitely color).
By '91 we were well into 486's and high res color (but not using IBM cards, but VGA wonder and the various Tseng cards were doing just fine).