A spot color adjustment system allows an operator to adjust spot colors through the use of test charts printed at a printing device. A target color swatch is determined from a first spot color. A test chart is generated based on the target color swatch that includes a plurality of rings of color swatches centered on the target color swatch. Each ring of color swatches is positioned around the target color swatch at an adjustment value. The adjustment value for each ring of color swatches corresponds to a color change from the target color swatch. The system allows for determining a number of rings of color swatches depending on a selected paper size. The outer rings of a large number of rings of color include intermediary color swatches. A midpoint color is determined from a plurality of selected color swatches. The system provides color swatches showing gray component replacement.