Blue and purple color palettes

Blue and purple are neighbors on the color wheel (about 50° apart), an analogous pairing. Analogous schemes feel harmonious and natural because the hues share undertones; the trade-off is low hue contrast, so separate them by lightness when they sit next to each other.

In practice, blue recedes and reads as trustworthy, so it suits large surfaces and primary actions, while purple feels deliberate and premium, and bridges warm and cool. The palettes below combine both families, strongest matches first; open any of them to see its contrast matrix and copy the hex codes, CSS variables or Tailwind config.

One caution: blue and purple are among the pairs people with color vision deficiencies confuse most. Never use them as the only difference between two states (such as error and success); separate them in lightness as well, and check the palette in the color blindness simulator.