Xiaomi Redmi K40 Pro Color Accuracy Shifts with Average Picture Level    
Figure 4a Color Shifts for DCI-P3 Content
Figure 4b Color Shifts for sRGB Content

The Colors and Absolute Color Accuracy of the display should not vary as the on-screen image content changes.

In Figure 4 below we examine and measure the Shifts in Color with changing image content from Low Average Picture Level APL to 50% Average Picture Level APL.

Figures 4a-b show the variation in the Absolute Color Accuracy between Low APL and 50% APL for the DCI-P3 and sRGB Gamut Content. The Color Shifts with APL are very small, with an Average Shift of just 0.2 - 0.3 JNCD, and the Largest Color Shifts are only 0.5 - 0.6 JNCD. The White Point Color Shifts with APL for the 2 Gamuts are both very small at 0.3 - 0.4 JNCD.

See the Color Shifts with APL section of the main article for the measurements and details.
See the Absolute Color Accuracy page for an in-depth discussion and analysis of Color Accuracy and definition of Just Noticeable Color Differences JNCD. Any Display Color Error less than 3 JNCD on a display is not visually noticeable and appears perfectly accurate to the eye. A 3 JNCD Color Shift is marked in the Figures below.

The Color Shifts are very small so the Low APL Red data points are almost entirely covered over by the 50% APL Blue data points.

Figure 4a.   DCI-P3 Content Color Accuracy Shifts with Average Picture Level APL
The Average Color Shift from Low APL to 50% APL is 0.3 JNCD and the Largest is 0.6 JNCD.
Color Accuracy Shifts for the DCI-P3 Gamut

Figure 4b.   sRGB Content Color Accuracy Shifts with Average Picture Level APL
The Average Color Shift from Low APL to 50% APL is 0.2 JNCD and the Largest is 0.5 JNCD.
Absolute Color Shifts for the sRGB / Rec.709 Gamut

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