Juxtaposition of Blue Color Levels Square on Red-Green Color Levels Array

Similar to All Colors, but has an overall smoother result. A square of 0-255 blue bits is overlaid on an array of 16x16px 0-255 red/green bits, with red levels increasing towards the right and green levels increasing towards the bottom. The key difference is that the darkest corners of adjacent blue squares touch and lightest corners of adjacent blue squares touch, creating smooth transitions.

Image Licence: Public Domain (CC0).