The approximation used in our current implementation of blackbody is limiting the temperature range to a lower limit of 1667 Kelvin. This clamping makes it impossible to get blackbody color results in the reddish colors.

Perhaps a better approximation can be found that permits a temperature range down to a lower temperature, preferable all the way down to The Draper point, around 800 Kelvin, which is the limit for visible light from a blackbody emitter.

This issue was spawned from this Slack discussion:
https://academysoftwarefdn.slack.com/archives/C0230LWBE2X/p1773095319965469