Apple released a new Color Matching Function standard alongside the Studio Display and Studio Display XDR, developed in collaboration with CIE, not as a unilateral proprietary spec.
Key Takeaways
CMFs (Color Matching Functions) are mathematical models of human color perception; CIE 1931 has been the industry baseline for nearly a century.
Modern LED, OLED, and Quantum Dot panels use narrow-band light sources that expose inaccuracies in CIE 1931, motivating Apple CMF 2026.
Apple CMF 2026 is currently scoped to white point calibration only and does not expand color space coverage or gamut.
It applies exclusively to the Studio Display XDR general modes (P3-2000 nits, P3 + Adobe RGB-2000 nits); all reference modes still use CIE 1931.
LTT Labs measured the XDR with a CR-100 colorimeter (CIE 1931 filters), so their general-mode results cannot be directly interpreted under the Apple CMF 2026 calibration space.
