Light floods O. Louis Guglielmi; the palette keeps values pale and airy across its range. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. The dominant colour, #EDEDE5, takes 25.5% of the total area, establishing the overall mood before any other hue is introduced. The highest-chroma note - #3B4A87 - appears at just 6.5%, deployed as a precision accent against the quieter ground. A value spread of 65 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. The mid-to-high key, cool bias, and moderate chroma point to outdoor observation - sky and diffused daylight as the dominant light source. In the context of O. Louis Guglielmi's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.