@IceWolf Most reputable source I can find through quick googling is this https://www.americanveterinarian.com/journals/amvet/2018/august2018/vision-in-dogs-and-cats which discusses dogs instead, but I personally see no reason to assume color perception has changed significantly between wolves and dogs over the course of domestication.

@Thaminga Huh neat, thanks! So if that picture is correct, looks like there's just... no red? Huh. But it's not like it's only red/green. :3

@IceWolf To be fair, it's kinda hard to really represent this stuff well; the wavelengths given there translate roughly to yellow and a tealish color in human terms, but at the end of the day the way to represent that is pretty arbitrary since you're translating things from one color space to another that at the end of the day just works differently on a few fundamental levels - hue is a binary when you only have two base colors.

@Thaminga Huh... didn't think about that. Although it's still "peaks", so that gives some wiggle room... don't know! It also says it's analogous to colorblind humans...

Would help if I were colorblind. :3

@Thaminga Firefox actually has a colorblindness simulation tool!...although I bet none of the presets would be close to this, and I don't know how accurate it can be anyway. Still.