Can Illustrator or other Adobe software find most matching color to suit several other colors?

[Chris P. Bacon]

If I paint real world multicolor objects (let's say seashells) , I am supposed to find the perfect background color for each of them.

I mean, the mathematically perfect background color.

The color that contrasts and suits all other colors of the seashell, the most.

I can extract the seashell colors with Adobe Color, but how do I calculate the most matching background color for the palette?

I say calculate, and not estimate, because it's one thing when you estimate by eye, but there must be some tools that work like palette generators and mathematically calculate the perfect background color.

None of the palette generators I know of, can do this.

I tried to pick the most vivid color extracted from the image, and set the background to its complementary color or its shades, but still I don't feel like it's the same professional color matching like the ones you see for example in photographs of museum objects, where the background color is just perfect.

How do they find the color?

[Monika Gause]

The background color is then perfect when an expert matches it. There is no calculator for this.

[Chris P. Bacon]

Yay, the Adobe Express mobile app suggests a color swatch for background after you remove the original background on an object with their background remover tool, and it looks really good.

My computer doesn't work at the moment so I cannot check, does Illustrator or any other desktop Adobe software have this background color suggest feature?

[Lukas Engqvist]

You can ofcourse use express as a sketching tool and use that feature.

[Monika Gause]

Adobe Express works in RGB. In museums they use cloth as a background or paint it using whatever inks. In Illustrator when you send something to print, you have to make the match in CMYK. So you can't even compare all of those.

[Chris P. Bacon]

I didn't mean the actual museum objects, but the photos of them on the museums websites, that have a single color background.

[Lukas Engqvist]

Adobe Colour and/or recolour artwork tools has presets for different colour harmonies.. Complimentary colours is one of these. Now if they are multi colour, that can be tricky since there is a variation and how do you want to find the complimentary if there is variance, is it the complimentary to the average if you mix them all up? 

[Chris P. Bacon]

I don't know how does Adobe Express calculate the suggested color swatch. I did not find any background color suggest feature on Adobe Color. It can extract colors and create contrast colors for a single color (font color), but that's not sufficient to find color match for a multicolor object. Adobe Express seems to suggest a monochromatic / analogous palette, but I am not sure, I didn't verify it yet, it's just similar. But sometimes it suggests white or black, so I don't think that the algorithm is purely monochromatic / analogous palette. Anyone from Adobe could tell us how do you do it?