Light floods Rose O'Neill; the palette keeps values pale and airy across its range. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Colours are neither washed out nor blazing; they occupy the productive middle ground of the chroma scale. The saturated accent, #D9874A, registers at 1.7% - sparse enough to feel like a deliberate surprise. At 32 units across the value scale, the palette keeps contrast readable without letting it dominate. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 1 of Rose O'Neill's sequence - a single chapter in a chromatic story told across many works.