Pretty accurate.

While colors are a highly subjective quality, and although they can be measured each person will expeirance them somewhat differently. To make things worse, the location that someone is viewing a given color will affect how it looks, as will any colors which are around the color in question.

Taking all that into account, and the problems with a substance like paint, limitations due to scanning hardware - the method which I have chosen to compare colors is industry accepted and used by paint manufacturers around the world in order to perform quality control on there paint factories. It is considered to be more reliable and less subjective than matching by the human eye.

I have attempted to reduce the impact of any potential problems as much as possible as well by doing the following:

• Paint chips are applied in several coats to a non reactive background that has been physcally etched in order to avoid any impact primers, acids or other chemicals might have on it.
• The scanner is calibrated with a FujiChrome IT8 test sheet at regular intervals while sampling.
• Where possible, multiple paint samples of the same color have been averaged to determine an accurate color (not all paints will be the same color between batches).
• Math results are checked and double checked.
• Random samples are tested visually to confirm matches.