Values in Joseph Keppler tilt decisively toward white, giving the palette its luminous character. Temperature is cool-dominant, with blue and green families claiming the largest areas. Chroma hovers near zero; colour declares itself through subtle shifts in hue rather than outright saturation. #714E46 delivers the chromatic peak at only 4.5% - a small shot of colour with outsized visual impact. Spanning 54 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. These proportions encode Joseph Keppler's instinctive sense of how much of each quality the eye can hold.