I used to work in a paint lab. Things things that also affect perceived color include:

- Undercoat color

- Number of coats

- Gloss Level

- Size of colored area

- Surrounding Colour

- Combination of tinters used by each brand. (Different tinters can make colours metameric)

- Light Source (Incandescent, D65, LED, Fluorescent)

- Monitor Color Space (sRGB, DCI-P3)

- Color Space / Model used for conversion (Lab, Luv, Lch)

- Colour Difference dE Model Used (CIE76, CMC, CIE00)

- Precision and spectral range of the spectrophotometer used.

Etc

Don't downrate, (s)he's right. If you are going to paint something, paint a sample foamboard or something and view it in the right context. It is remarkable how the color of paint can be affected by its surroundings as it refracts and reflects. It will look rather unlike the pictures in the catalog if your lighting conditions are different.

Yup. It’s called “metamerism.”

With most paints, the medium used can affect color, as well as aging. I used to use Ph Martin watercolor dyes, and they were notorious for fading after a relatively short time. The illustrations that I colored with them, are now monochrome. I’m sure they’re better, now. Pigment science has come a long way. Acrylic was always a lot longer-lasting.

Also, context matters. Our perception changes, based on surrounding colors. There’s a bunch of optical illusions that leverage this.

But I think this is kind of a cool project.

I pulled out the RGB values from the solid color areas of the swatch images on the manufacturers' websites for each of the colors.

It's definitely just an approximation of the real-world color, but I figured that if that's the RGB value the manufacturer used, it's probably pretty close.

Then I calculate the euclidean distance between the RGB value from the provided hex and each of the paints, and show the two closest matches from each brand.

More like "fundamentally impossible". Even ignoring the limited colorspaces due to choices of primary (i.e. the fact that no laser's color can be emitted by a screen), and assuming you calibrate your "white" (most screens are overbright these days), it turns out the pigments are really bad at "reflect exactly this pure-ish wavelength and absorb everything else", which is very frequently done by emitters.

Yeah the goal was simply to find the closest paints for specific RGB values from a reference image for a pointillism project I was working on.

I wasn’t trying to do the impossible and find the absolute perfect real-world color match. Just something close given the limited palette of acrylic paint brands I could find locally.

I am absolutely sure putting a ```<div class="wash" style="background-color: nulnoil"></div>``` over your entire page can make any website look good

Also, try IONIC paints, they are awesome

I can definitely try to make that happen!

For those who don’t know, the main difference between craft store paints and artist grade paints are:

- ratio of pigment to binder (craft store paints have less pigment)

- pigment quality (craft store paints are usually larger grain and may sometimes use unsafe pigments)

- color purity and consistency (craft store paints may contain traces of unintended pigments and may vary between batches)

- color variety (craft store paint manufacturers are NOT going to be paying extra for rare pigments)

- lightfastness (craft store paints may fade quicker due to lack of UV protectant additives)

- binder quality (craft store paints may use cheaper, more toxic binders)

Otherwise they are the same stuff, it’s kinda hard to screw up mixing acrylic binder with a pigment.

Check that your paint has the ACMI Approved Product seal.

https://www.acmiart.org/acmi-seals

Yeah so far I've only added brands you can find in craft stores (FolkArt Matte, Apple Barrel, and DecoArt Americana)

Any specific artist brands you'd want to see added?