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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?

It's a very difficult task to match a color sample (printed matter, paint, plastic) using computer technology. Computer color simulations only approximate the real color cards, fandecks or color collections.
In the real world, at the same time, those color cards only approximate the real colors of the products (paint, ink, plastic...) they represent.
Computer generated colors are also deeply affected by the monitor characteristics, environment, configuration and setup. Also the monitor (both CRT or LCD) does not display all the colors we experience in real life. For the above reasons computer and Web technology can NOT perfectly represent or substitute original colors. On the other hand is possible to obtain useful information about matching products. Is also possible to display very accurate color differences on a computer screen.


How are color standards measured?

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?