Low-key values are the structural spine of Eastman Johnson, giving it gravity and atmosphere. Eastman Johnson balances warm and cool with remarkable evenness, giving the composition its characteristic vibrancy. Saturation is deliberately withheld - the beauty here lies in the near-monochromatic gradations rather than colour difference. 28.2% of the palette belongs to #1E1E16, a concentration that makes it the unmistakable visual centre. Only 0.9% is devoted to #D3A070, yet that small allocation delivers the palette's entire chromatic tension. The value range of 51 units sits in the comfortable middle: enough depth, enough light, neither extreme. Together these qualities place Eastman Johnson firmly in the tonal tradition - concerned with mood and atmosphere rather than chromatic display. Eastman Johnson's palette 13 carries its own internal logic while remaining in conversation with the artist's broader colour intelligence.