ProPhoto
The ProPhoto color space is registered in Color by default
Properties
Name: prophoto-rgb
White Point: D50 / 2˚
Coordinates:
| Name | Range* |
|---|---|
r | [0, 1] |
g | [0, 1] |
b | [0, 1] |
* Range denotes in gamut colors, but the color space supports an extended range beyond the gamut.
CIE 1931 xy Chromaticity – ProPhoto RGB Chromaticities
The ProPhoto RGB color space, also known as ROMM RGB (Reference Output Medium Metric), is an output referred RGB color space developed by Kodak. It offers an especially large gamut designed for use with photographic output in mind. The ProPhoto RGB color space encompasses over 90% of possible surface colors in the CIE L*a*b* color space, and 100% of likely occurring real-world surface colors documented by Pointer in 1980.
Channel Aliases
| Channels | Aliases |
|---|---|
r | red |
g | green |
b | blue |
Input/Output
Parsed input and string output formats support all valid CSS forms:
color(prophoto-rgb r g b / a) // Color function
When manually creating a color via raw data or specifying a color space as a parameter in a function, the color space name is always used:
Color("prophoto-rgb", [0, 0, 0], 1)
The string representation of the color object and the default string output will be in the color(prophoto-rgb r g b / a) form.
>>> Color("prophoto-rgb", [0.78951, 0.62329, 0.21172], 1)
color(prophoto-rgb 0.78951 0.62329 0.21172 / 1)
>>> Color("prophoto-rgb", [0.70225, 0.27572, 0.10355]).to_string()
'color(prophoto-rgb 0.70225 0.27572 0.10355)'
Registering
from coloraide import Color as Base
from coloraide.spaces.prophoto_rgb import ProPhotoRGB
class Color(Base): ...
Color.register(ProPhotoRGB())