There is a pixel on Acacia Wood Planks that is the wrong color, based on the fact that the other 9 planks with similar formats (excludes bamboo planks) have the same color in relation to their palettes. The issue also carries over to the Acacia Sign texture.

I've checked the Texture Update Pack from the Marketplace and the pixel is also off, so this has been in the game since 1.10.0 (or almost 4 years).

It's also in Java Edition 1.19.4 and 1.14 too (and likely every version in between).

One screenshot shows the block compared to the other 8 planks, the other shows the location of the pixel.

Since there are more pixels that are off (4 in total), there is a 3rd screenshot with a green pixel to the left and right of the pixels.

As stated, the issue does affect Java Edition as well. I have just made a bug report on that (MC-258260) that you can check out.