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Tips for Defining a Realistic Pass/Fail Tolerance

Did you read our blog: Are You Using The Right Tolerancing Method? If not, check it out. Today we’re taking the topic one step further to investigate how tolerances are chosen in different industries.

A pass-fail tolerance is the amount of color variation that is considered commercially acceptable. In part, tolerances are driven by customer expectations. While color tolerances are very tight in the automotive, plastics, and paint & coatings worlds, they can be much less strict in other industries.

car door color matching

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Print, Tolerancing

Tolerancing in Flexo and Offset Printing

Density only tells us one thing about a color – how light or dark it is. To compare and communicate accurate color in print and packaging, you also need to measure hue and saturation.

Today we’ll take a look at the two most commonly used color models:  CIELAB and L*C*h°, and the tolerancing methods that help us describe color difference.

cielab lch color tolerancing methods

The concept behind CIELAB and L*C*h° is similar to longitude, latitude and altitude … with three coordinates, you can describe the exact location of any place on our planet (or in this case, any color in color space).

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