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F.A.Q.

We tried to group together the more usual questions we receive about using and interpreting this site data and services. These FAQs are all related to the EasyRGB site and the way we specifically handle color information. If you are searching for more generic information about color, on the Net there are several good sites devoted to color science, physics, psychology, physiology and technology. Check our Links page for a list of handy color FAQ references.

What can I do using the services of this site?

How accurate are on-screen colors?

How are color standards measured?

We measure samples of all the colors listed in our color matching service.
We use a 45° bench spectrophotometer in a temperature controlled area of our facility.
In order to grant data consistency we do not post readings or color data obtained in electronic or PC readable format. Only physical samples are evaluated.
Particular color selections (like browser colors) have been manually inserted and their tristimulus values have been calculated from the original RGB data.

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How color measures are stored in the EasyRGB database?

How is the closest color (best match) calculated?

Why HLS/HSL/HSB/HSV data is not supported?

Is any gamma correction applied to the displayed colors?

Why is a 45 (not a sphere based) spectrophotometer used?

Is possible to add a new color collection to the color matching list?

What is the required color resolution for this site?

Is any compatibility problem associated with old browsers?

Why printed colors are not consistent with my monitor?