REC. 2020 (OETF)

The Rec. 2020 (OETF) color space is not registered in Color by default

Properties

Name: rec2020-oetf

White Point: D65 / 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.

ITU-R Recommendation BT.2020, more commonly known by the abbreviations Rec. 2020 or BT.2020, defines various aspects of ultra-high-definition television (UHDTV) with standard dynamic range (SDR) and wide color gamut (WCG), including picture resolutions, frame rates with progressive scan, bit depths, color primaries, RGB and luma-chroma color representations, chroma subsamplings, and an opto-electronic transfer function. The color is used in 4k and 8k UHDTV.

This is a scene-referred variant that uses the OETF specified in the BT.2020 spec.

Learn about REC.2020

Channel Aliases

Channels	Aliases
`r`	`red`
`g`	`green`
`b`	`blue`

Input/Output

Rec. 709 is not supported via the CSS spec and the parser input and string output only supports the color() function format using the custom name --rec2020-oetf:

color(--rec2020-oetf 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("--rec2020-oetf", [0, 0, 0], 1)

The string representation of the color object and the default string output will be in the color(rec2020 r g b / a) form.

>>> Color("rec2020-oetf", [0.79198, 0.23098, 0.07376])
color(--rec2020-oetf 0.79198 0.23098 0.07376 / 1)
>>> Color("rec2020-oetf", [0.86727, 0.64078, 0.18496]).to_string()
'color(--rec2020-oetf 0.86727 0.64078 0.18496)'

Registering

from coloraide import Color as Base
from coloraide.spaces.rec2020_oetf import Rec2020OETF

class Color(Base): ...

Color.register(Rec2020OETF())