![]() Get the book pdf if you care to read more.Ĭolorimeters measure color in terms of three numbers called tristimulus values. Chapter 5 "Color Matching and Color Control" (just a small paragraph). I have a book "Paint Technology Handbook" from CRC Press. Make the customer pick the color and specify it by manufacturer number. "Too blue," said the boss.ĭon't let yourself get trapped in this endless exercise. Finally after four or five tries, in desperation, he painted the drift card with his mix when he sprayed his sample, so they were both painted with the same paint. ![]() So, he'd add a bit more green, and do the whole sequence again. "Too blue," the boss would say, even though to his eye he thought he nailed it. he'd mix a batch, spray up a sample, let it dry (just a couple minutes, this was back in nitrocellulose lacquer days) and take it and the drift card into his boss. It was a teal/turquoise color and he was having a hell of a time matching it. The customer had supplied a color sample on a metal panel (often called a "drift card") for a new product they were building a model of for the early ad and catalog photos, which was common in the day. I'm reminded of a story an old time modelmaker, now recently passed on, told me years ago. Examples: highly intense purples or other secondary colors, flourescent or "neon" colors.Ĭolor matching sucks, and trying to do it long distance is fraught with the danger of misunderstanding. It probably will not be a perfect match, but it will be a very close match unless your customer picked some wild out-of-gamut color that requires a special pigment. If he can't, one of his competitors probably can, although I am sure they would prefer a paint chip to scan. The paint guy should be able to find cross-reference charts for RAL, Federal standard, and Pantone process colors. Your paint vendor can scan a paint chip and give you the closest possible match in their color code system. Process color is what you probably want.) (BTW, Pantone has several color specification systems. The Pantone process color chart would also work although it's intended for ink on paper, not paint on metal. ![]() A decent reproduction of the RAL or Federal standard paint color charts would work, although the colors are fairly limited. Seriously: send him/her to a hardware or big box store with a paint department. Your customer needs to pick a color based on a paint chip, preferably a real physical paint chip. I am not going to get into additive vs subtractive colors, nor CIE Lab color space, nor gamut limitations, nor color models, nor any of the other highly technical crap behind the standard "your monitor may not show these colors correctly" warning. There are a lot of reasons you cannot reliably go from RGB to paint code. The only exception is when setting dielines, where they are purposely set to Spot Colour to prevent them from printing.Short answer: "no". If there is any artwork set to a Spot Colour, the PDF will contain an extra separation for that colour that cannot be printed. When preparing a Print Ready PDF, the file must only contain the four CMYK separations. ![]() Why do I need to convert Spot Colours to CMYK? Most people would be familiar with this system through their use of home desktop colour printers. The use of spot colours is far less common these days due to the cost-effectiveness of digital printing, and also because of the excellent colour reproduction that can be achieved using digital CMYK printing.ĬMYK or Process Colour printing is a system where four different coloured inks - cyan, magenta, yellow and black - are combined to achieve the final result. Spot colour is a single mix of ink used in printing, rather than using a combination of ink colours to achieve the desired colour output. What is the difference between Spot Colour and CMYK? How do I supply the right logo file for printing?.How do I outline text in Illustrator, Photoshop or InDesign?.How do I flatten a transparency in InDesign, Illustrator or Photoshop?.How do I create a dieline in Illustrator, InDesign or Photoshop?.National Broadband Network (NBN) roadshow kit.Eventful Kids Portable Child Care Booths.
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