Retro style website color coordination involves selecting colors that evoke nostalgia and vintage aesthetics. This often includes muted, earthy tones and classic color combinations. The goal is to create a visual experience that feels timeless and reminiscent of past decades. Techniques like using limited color palettes, incorporating shades of brown, beige, olive green, and soft blues are common. Additionally, textures and patterns that mimic olden days can enhance the retro vibe.