Something as easy as painting a wall could make your home feel cooler. You wanted to spruce up your room, right? Well, as the warmer months approach, you might want to consider cool paint colors that make your space feel a bit breezier (without dialing down the thermostat). This means avoiding warm hues like brown, red, and orange, and opting instead for cool paint colors that make a space feel fresh and airy.
Obviously you're going to pick the color or colors that speak to you and go with your design style, so look into your choices: Green, Blue, Purple and their variations. Like violet, blue-green, and yellow-green.
Neutrals like white and gray can also lean warmer or cooler depending on their undertones.