Guido Reni is high in key: pale, luminous, and filled with optical air. Yellow, ochre, sienna: warm hues that Guido Reni deploys as the palette's primary energy. Saturation is measured and controlled, giving the palette presence without visual aggression. The highest-chroma note - #DEC6AD - appears at just 11.7%, deployed as a precision accent against the quieter ground. Spanning 53 units on the value axis, the palette achieves the balance between tonal flatness and fragmentation. In the context of Guido Reni's full range of palettes, group 1 represents one movement in an ongoing chromatic dialogue.