rgb02550

rgb02550 is a conceptual RGB color encoding used in color science education and in some software demonstrations. It designates an eight-bit-per-channel RGB encoding intended as a simple, device-independent reference space for illustrating color encoding, conversion, and calibration workflows. It does not correspond to a formal standard recognized by major standards bodies, but it is widely referenced in tutorials and prototype software as an example.

The nominal specification comprises three channels (red, green, blue), each ranging from 0 to 255. The space adopts a fixed white point approximating D65 and uses a transfer function that combines gamma-like correction with a linear region to preserve detail in highlights and shadows. In practice, values are often treated as perceptually non-linear data for display, then converted to a linear or perceptual representation as needed. For display, values are typically converted to sRGB using a standard matrix and gamma correction; for storage, the values may be stored as 8-bit integers with optional ICC profiles to assist cross-device color management.

Practical use of rgb02550 lies primarily in teaching color management, debugging imaging pipelines, and benchmarking color conversion routines. Because it is not a formal standard, implementations may vary, and results can differ across software. It is intended as a didactic tool rather than a production color space for color-critical work.

In relation to other spaces, rgb02550 is analogous to sRGB in being an eight-bit RGB space with a gamma-corrected transfer function, but rgb02550 is explicitly labeled as a pedagogical reference rather than an official profile. See also sRGB, Rec. 709, and ICC color management.