sRGBWerten

sRGB values refer to the standard RGB color space used for digital images and displays. Created in the 1990s through collaboration between industry players, it was designed to match typical consumer display characteristics and to provide a common reference for color on the web and in software. The space defines specific primaries and a white point that together determine the color gamut and appearance.

The sRGB primaries are defined in the CIE 1931 color space as approximately red (0.640, 0.330), green (0.300, 0.600), and blue (0.150, 0.060). The white point is D65 (x ≈ 0.3127, y ≈ 0.3290), which corresponds to a correlated color temperature near 6500 K. The resulting gamut is widely supported and well suited for general use, but smaller than some wide-gamut spaces used in specialized applications.

Digital color values in sRGB are typically encoded as 8-bit per channel values in the range 0–255, representing non-linear sRGB data. To work with physical light, these values are transformed to linear light using the sRGB transfer function. If the encoded value s is ≤ 0.04045, the linear value L is s/12.92; otherwise L = ((s + 0.055)/1.055)^{2.4}. Conversely, to encode linear light to sRGB, if L ≤ 0.0031308 then s = 12.92·L; otherwise s = 1.055·L^{1/2.4} - 0.055.

sRGB is the default color space for the web and many image formats. It is broadly supported by displays and color-management workflows, and is usually the reference space when converting colors to other gamuts.