A new color space, OKLab, is gaining traction, so I was reading up on the documentation.

In the original post introducing OKLab, it says "Oklab uses a D65 whitepoint".

However, in the followup post, it says "Oklab has no concept of reference white".

When I search for these terms, wikipedia tells me that they are identical. "A white point (often referred to as reference white or target white in technical documents)".

So, what is the difference between reference white and whitepoint?

Then, what is the difference between the Lr and L discussed in the second link?

Thank you in advance.

  • Your question needs to be split into 2 questions and it can not rely so much on external sources. Since there is one author for both articles send a clarifying question to the author himself.
    – joojaa
    Jan 6 at 15:03
  • Also this question is far more ontopic for computergraphics.stackexchange.com
    – joojaa
    Jan 6 at 15:12

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