Image Color Picker by PineTools VS Eye Dropper

Actually you can, get an image and open it up in an editor, or this site that lets you pick colours online, paste the hex colour code into something like this site that gets the colour name and you ought to get some context as to what the colour appears to the rest of us. Source: over 1 year ago

I usually take a color pick from the unitcolorcompendium.com website (to get a colors hex code from one of their pictures) then use encycolorpedia.com to find the nearest paint match. Encycolorpedia.com have vallejo, citadel, tamiya and I think airfix indexed. Regulan Hussars come out as Vallejo Heavy Ochre. SO... Source: about 2 years ago

Here, we will want to make the blue color transparent so we can fill it in ourselves. Using a Chrome eye dropper plugin, I found the color we need to make transparent is: #3183bf. We can set this to transparent using the image_transparent() function from the magick package, then use as.raster() to make it something R can plot again. Source: almost 3 years ago

In this case they can use a browser extension like Eye Dropper to give you an accurate answer. Source: almost 3 years ago