## 1 Introduction  
Structural color generation has received intensive research attention to color filter and display technologies for replacing conventional dye and pigment based system. Many of the structural colors, especially structural colors by metasurface, composed of periodic array of nanostructured materials, have been focused due to their compactness, near-permanent lifetime, and capability for surpassing diffraction limit to ultra-high dpi far beyond the resolution of any color-generation system. As its geometric dimensions are comparable to the wavelength of visible light, a periodic array of nanostructures exhibits optical resonances at visible wavelength, thereby producing color that corresponds to the scattering spectrum. The structural color generation by the metasurfaces has been successfully demonstrated in plasmonics [1; 2; 3; 4; 5; 6] and dielectric systems [7; 8; 9; 10; 11] using a variety of designs (See review papers [12; 13; 14; 15; 16] for details). However, as the geometry of nanostructures specifies scattering properties, an array of nanostructures usually produces only one fixed color. It implies that a whole new sample should be fabricated to produce different color or temporally varying color. As an alternative, adoption of mechanical transformation [17; 18; 19; 20; 21], chemical transition [22; 23; 24], phase change material [25; 26; 27; 28] and electrochromic polymer [29] provide dynamic color printing. Nevertheless, dynamic color printing can be realized in a far simpler system by polarization control without involving any external stimuli [30; 31; 32]. A periodic array of cross-shaped nanoantennas [8; 33; 34; 35], elliptical nanostructures[31; 32; 36], rectangle nanostructures [37] and a grating pattern [38] have demonstrated active color printing by rotating incident polarization. Here, lack of four-fold symmetry leads to active color generation. However, previously demonstrated structures cannot support wide range of colors as they generate linearly varying color gamut [33] or cover partial space [8; 38] in a chromaticity diagram using one unit design. Meanwhile, generation of three primary colors: red, green and blue in a single system, has been reported by adopting three cavities of different shapes and directions altogether [30]. Although this cavity-aperture system had potential for a tunable color filter, transmittance of the system is extremely low, obstructing practical usage.  
In this paper, we present and demonstrate the reflection type metasurface, producing different color under incident polarization. Whereas previous works have utilized a single anisotropic structure in a unit cell, we introduce three different nanorods which work as dipoles in order to selectively excites the nanostructures depending on incident polarization direction. As a result, we can realize circular color-changing path in color gamut providing much larger tunability. We experimentally demonstrate reflection type active color generation, which agrees well with the simulated color. Finally, we suggest the complementary design metasurface, which has three different slits on a metal film, as a transmission type metasurface based on the Babinet's principle. These metasurfaces covering a wide range of colors in a single design present a possibility of tunable color printing without complex system, which can be beneficial in real-world applications such as display and sensing.