A desert color palette is a curated range of hues drawn from the natural landscape of the Sonoran Desert, warm ochres, terracotta, sage, dusty mauve, warm whites, and bleached neutrals, calibrated specifically for how Arizona's high intensity, high UV light reads on interior surfaces. It is a regional palette because it is a response to a regional light condition, not because of any decorative convention.
Colors that appear soft and muted in northern climates frequently read as saturated and harsh under Scottsdale's light, which means undertone and light reflectance value both need deliberate adjustment. A cool white with a gray or blue undertone goes clinical under midday sun. A greige that looked balanced on a chip goes pink on a south wall at two in the afternoon. The same room changes character three times a day: golden and forgiving from the east in the morning, bleached and nearly shadowless at noon, warm again in the last hour before sunset. Any color decision made without seeing all three is a guess.
So we test. Large painted sample boards, at least 18 by 24 inches, moved around the room across several days and viewed against the actual flooring and the actual stone. Small chips taped to a wall tell you almost nothing, because they pick up the color of whatever is around them. The Troon Retreat in North Scottsdale is a clear example of the palette working as intended: sandy beige, earthy brown, misty grey, and soft white, pulled directly from what sits outside the glass, so the interior never argues with the view.
A desert palette does not mean a beige house. It means the neutrals are warm enough to hold up under this light, and that the color you do introduce is chosen knowing what the sun will do to it. We work the palette out room by room through interior styling and decor, and our article on how Scottsdale's light changes everything gets into specific paints and undertones.