I am doing a graphic standards guide for a project with school and we have to include the rgb, cmyk, hex and pantone equivalent. There probably isnt an exact equivalent with the pantone. So basically I have to have the exact equivalent to it or nothing at all. Is the 419 or 426 the equivalent to the RGB 0,0,0? It's the blackest one I have seen but I think it has to be exact. Thanks for the reply!
It isn't as simple as you make it. Your question about RGB=(0,0,0) leaves out a fairly critical piece of information. Exactly what RGB color space are you intested in? Adobe RGB? sRGB? Other? Based on what you wrote, your project also deals with CMYK color as well. But you have the same issue there. There are many different CMYK color spaces. You must specify which when trying to equate colors.
Hmmm I see, I might just have to ask the professor about it
You would hope the point of the assignment is to show there are no equivalents because color conversions depend on the device, that's why there's such a complex color management system in place.
Single hit process black printed at normal densities can't come close to 0|0|0 in any of the provided RGB spaces, and you would have the same problem with single hits of any of the Pantone blacks. Pantone Black 6 C is the blackest at Lab 8|-2|-7.
Or if your starting color is 128|128|128 AdobeRGB gray and you want the CMYK values for a sheetfed coated press in Japan, sheetfed coated in the US, and a US Newspaper, you get this range of conversions: