Color Matched?  One of the most common questions asked.
Here is an basic examination of the issue.

Pantone: Often artwork color is identified in Pantone colors.  This is typically the easiest way to allow different production methods to reference a desired color.  The large Pantone spectrum is used most often in processes in which mixing colors is possible.  Silk-screening, large press printing and paint are some examples.  As more production is completed using CMYK machinery many Pantone colors cannot be exactly reproduced. If you provide vector artwork with Pantone callouts we will try to match as close as possible with CMYK or vinyl production.

RGB: The system your computer monitor (and tv) uses.  Defined as an additive color model in which the "R" stands for red, "G" green and "B" blue (primary colors).  Starting from black the R G & B values are increased in various overlaps to create colors eventually creating white.  The RGB spectrum is slightly larger than CMYK.  RGB can produce some colors that are brighter than CMYK.  Due to monitor settings, age, brand, etc there is no way to guarantee what you see on your monitor and what is printed will be exactly the same.  If you provide vector artwork with RGB callouts we will use a graphic program to automatically convert it to CMYK.

CMYK: The color system used in nearly all digital production.  C (Cyan) M (Magenta) Y (Yellow) K (blacK) starts with a white media and prints ink producing overlaps to create colors eventually producing black.  As shown above it is a portion of the other color models meaning not all colors can be produced in CMYK.  Due to different printers, medias, papers, programs and even environmental conditions CMYK colors can shift.  Something printed on your desktop printer may not match a large format printer color even with the same CMYK color.  If you provide vector artwork with CMYK callouts we will print as is unless otherwise noted.  (see below)

SO WHAT DO I DO?  If you have read this far color is important to you.  In cases where color is critical the best solution is to view the CMYK chip charts at Sign-A-Rama, Irvine's location.  We have a CMYK color chart for each media we work with.  You can pick the red you need for banners, simple window graphics and vehicle wraps - even if in order to match they are not the same CMYK callouts.
We were some of the first to use this process.  Local reps often stared confused at all the similiar prints on our walls - until they realized the usefulness and published the idea as their own!