sRGBväriavaruutta

sRGB is a standard RGB color space created by HP and Microsoft in 1996 to standardize the colors produced by monitors, printers, and the internet. The name "sRGB" stands for standard Red Green Blue. It is the default color space for most digital cameras, web browsers, and operating systems.

The sRGB color space is defined by the CIE 1931 colorimetric standard. It is designed to approximate the typical viewing conditions of the time, which included a dark room and a CRT monitor. The primary colors of sRGB are red, green, and blue, and their relative intensities are used to create a wide range of colors.

sRGB is a relatively small color space, meaning it cannot represent all the colors that the human eye can see. However, it is sufficient for most common applications, such as displaying images on the web or printing photos. For applications that require a wider range of colors, such as professional photography or graphic design, other color spaces such as Adobe RGB or ProPhoto RGB are often used.

The gamma correction used in sRGB is approximately 2.2. This means that the relationship between the digital values and the perceived brightness of a color is not linear. This gamma correction was intended to compensate for the non-linear response of CRT monitors.

sRGB is widely adopted because it provides a common reference point for color reproduction across different devices and platforms. This helps ensure that colors appear relatively consistent, whether viewed on a monitor, a smartphone, or a printed photograph, although variations can still occur due to differences in display calibration and viewing environments.