Reflection of a hundred% of incident light at all wavelengths is a kind of uniform reflectance, so white is an achromatic colour, meaning a shade with no chroma. At the conclusion of the 19th century, direct white was nevertheless the preferred pigment; but concerning 1916 and 1918, chemical providers in https://www.propanraya.com/warna-putih-untuk-interior-yang-bersih-dan-elegan-pilihan-tepat-dengan-cat-eco-emulsion-ee-4010