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Acer Predator XB321HK 32″ 4K G-SYNC Monitor Review


Colour Saturation Levels

There are numerous colours that the human eye can’t see because the human colour space is confined to three primary colours and combinations thereof. In order to not waste manufacturing resources displaying colours that we can’t see, a colour space known as CIE RGB was mathematically derived and turned into the de facto standard by the International Commission on Illumination (CIE).

In the image below, the dark triangle that isn’t highlighted is the sRGB colour space, while the overall CIE colour space is displayed as the background colours. Meanwhile, the white triangle with highlighted colour represents the results of what a given monitor can display. No monitor can display the entire CIE colour spectrum, but a good monitor should be able to display the sRGB spectrum of possible colours as it is usually used as the standard for image encoding.

A monitor that features the “wide colour gamut” moniker can display more than the sRGB spectrum, and is considered primarily for professional use. If a monitor cannot cover off the entire sRGB triangle, the resulting image will appear “off” to an observer. The end result is a displayed picture that won’t be as rich, vibrant or as correct as it should be.

Colour reproduction is one area that Acer’s Predator series has excelled at in the past, and the new XB321HK is no exception. Quite honestly, all but the most persnickety of consumers will find this colour range to be more than acceptable, and most will consider it to be downright fantastic.

Default RGB Levels

An LCD or LCD LED backlit panel relies on accurately blending Red, Green and Blue pixel clusters to create an overall image. Therefore, the closer each of these colours is to a perfect 100 output, the better and more accurate the default colours will be.

In this case, we have a low tolerance for anything less than perfection since any colour shift can be noticeable even to untrained eyes, and will require a colour correction at the software level to overcome a monitor’s stock output. We do however consider a minor variation of only a few points per colour to be acceptable.

While not precisely perfect 99/100/100 is within the error ratio of our testing equipment. As such, this panel can be considered by most to be flawless. Of course if your job depends on perfectly accurate colour representation you may wish to check your panel to ensure that it is indeed faithfully reproducing all the RGB colours.

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