What Is A Wide Color Gamut & How Does It Relate To Color Volume?

The wide-gamut RGB color space (or Adobe Wide Gamut RGB) is a color space developed by Adobe Systems, that offers a large gamut by using pure spectral primary colors. [1]

What is Wide Color Gamut? Wide Color gamut (WCG) is a term that refers to any color gamut that is wider than the sRGB standard. WCG can offer more vivid and lifelike colors, as well as more subtle and nuanced shades and tones.

隨著液晶面板背光技術的進步，電視的色彩再現能力更加優異，目前廣泛使用的背光源技術為藍光LED搭配RG螢光粉，能凸顯分別代表長、中、短波長的RGB光譜分布，使各頻帶的能量更集中，提高顏色的純度讓色域往外擴張，而這樣的技術稱為廣色域（wide color gamut，WCG）。 舉例來說，對比一般色域的電視，廣色域電視通常可由NTSC 72%提升至85%以上。 近年來量子點技術的發明，色域已經可以達到NTSC 110%。 而隨著廣色域技術的持續創新，國際電信聯盟為4K電視制定的新一代色域標準BT.2020，其

使R、G、B三色的光譜頻譜能量更為集中 (光譜的半波寬FWHM更窄)，提高R、G、B三色的顏色純度讓色域範圍向外延伸擴張，這樣的技術稱為廣色域 (Wide Color Gamut; WCG)。

Adobe RGB was developed to expand the current offering and standards made by the IEC, to provide a broader color gamut and offer a more realistic representation of visible colors in the display, photo capture and print spaces.

If your display passes the wide gamut test, you can test your browser’s support for cICP chunks in PNG images by checking whether it can display wide gamut colors correctly.