March
13
I want to write this down as fast as possible so I don’t forget. We learned about RGB, CMYK, and Spot colors in our Illustrator class yesterday and I didn’t take any notes, so I’m writing them here because I just want to show off my great knowledge :D.
RGB: (red, green, blue ) Light. Used for computer screens, LCDs, digital cameras, etc.
CMYK: (cyan, magenta, yellow, black) Print. Used to print documents, posters, etc. Uses 4 plates. Colors not as bright and vivid as Spot color. Can not be used to produce luminescent and metallic colors.
Spot: Premixed color. The printer mixes colors together on one plate. Can be used to produce luminescent and metallic colors. The reference swatches for a full list of Spot color numbers can cost up to $250 and should be renewed every 2 years.
So if a client wants the most financially efficient print job – the cheapest he can get it, and has 3 or less colors in the design, it would be cheaper to use spot color because mixing 1 plate for each color would produce 3 plates as opposed to the 4 that would be needed if using CMYK.
If the client, again, wants the cheapest print job and has 5 or more colors in the design, the most efficient way to print would be using CMYK because it will need 4 plates regardless of the amount of colors there are.
If the design has 4 colors, it does not matter which method is used as it would amount to 4 plates either way.
If the design has 3 regular colors, 1 luminescent color, and 1 metallic color, it would be more efficient to use spot. This will amount to 5 plates. Luminescent or metallic color cannot be achieved with CMYK and using CMYK (4 plates ) for the 3 regular colors, then mixing 2 plates of spot colors for the luminescent and metallic colors, would amount to 6 plates.