High-transmission dual-tunable structural color based on an all-dielectric medium

•A three-layer all-dielectric structure achieves dynamic tunable structural color.•The structure suppresses multimodal spectra, enhancing transmission rates for primary CMY colors.•The transmission efficiency for magenta reaches 96 %, yellow 89 %, and cyan an outstanding 99 %. In this paper, we propose a three-layer all-dielectric structure capable of dynamic tunability by varying the lattice period and incident angle, thereby facilitating the production of high-quality colors. By integrating three dielectric layers with outer rings and inner cylinders, we effectively suppress multimodal spectra, leading to significantly improved transmission rates for the CMY primary colors. The high transmission efficiency for magenta reaches 96 %, yellow reaches 89 %, and cyan attains an outstanding 99 %. The materials utilized in this design possess characteristics conducive to practical fabrication, thereby offering extensive possibilities for practical applications. Furthermore, our findings provide new insights and potential avenues for future research and applications of structural colors in all-dielectric materials.