Defining the analogous range
An analogous palette is built from colors within a contiguous arc of the color wheel. The practical design range is 30° to 90°. At 30°, the colors are so similar in hue that the scheme reads as near-monochromatic — the relationships are felt as tonal variations of a single color rather than distinct colors in combination. This is appropriate for minimal, refined contexts. At 60°, the colors are clearly different but remain in obvious harmony — the most commonly used range for brand palettes and UI systems. At 90°, the spread becomes wide enough that the palette starts to include two distinct color families (blue and green, or orange and yellow), requiring more careful management to prevent the scheme from feeling like two separate palettes placed together. Beyond 90°, most designers would classify the scheme as split-complementary or triadic rather than analogous.
