Here’s a cozy color palette that incorporates green and brown as the primary colors, with soft accents of yellow, purple, and blue:

 < Cozy Retreat >
1. Deep Forest Green - 
                            
                            #4A6E4D
                         - A rich, muted green that brings the tranquility of nature indoors.
2. Warm Chestnut Brown - 
                            
                            #7B5B3A
                         - An earthy brown that adds warmth and comfort to the space.
3. Soft Mustard Yellow - 
                            
                            #D3C85F
                         - A gentle yellow that offers a subtle pop of brightness without being overpowering.
4. Lavender Mist - 
                            
                            #AFA2C5
                         - A soft, muted purple that provides a calming touch and complements the greens and browns beautifully.
5. Dusty Sky Blue - 
                            
                            #8BB8D2
                         - A muted blue that evokes a serene sky, adding a refreshing accent without overwhelming the palette.

This palette creates a cozy atmosphere, ensuring that the overall feel remains warm and inviting while still incorporating the requested colors.

Would you like to explore specific combinations for particular rooms or accessories? Or are you interested in how to apply these colors in your design?