An article comprising: a substrate having a physical thickness ranging from 100 μm to 5 mm and having a surface; and an optical film having a physical thickness in the range from 0.1 μm to 3 μm, said optical film being disposed on the substrate surface forming a coated surface, and the optical film comprising a scratch-resistant layer having a physical thickness in the range from 1.5 μm to 3 μm, wherein the optical film further comprises an optical interference layer disposed between the scratch-resistant layer and the substrate; wherein the optical interference layer comprises a physical thickness of 800 nm or less and comprises a first low refractive index sub-layer and a second high RI sub-layer; and wherein the difference between the refractive index of the first low RI sub-layer and the refractive index of the second high RI sub-layer is 0.01 or greater; wherein the first low RI sub-layer comprises SiO 2 or SiO x N y, the second high RI sub-layer comprises at least one of Si u Al v O x N y, AlO x N y, and SiO x N y, and wherein both the first low RI sub-layer and the second high RI sub-layer comprise an optical thickness (n ∗ d) in the range from 2 nm to 200 nm; wherein the scratch-resistant layer comprises at least one of AlN, Si 3 N 4, AlO x N y, SiO x N y, Al 2 O 3, Si x C y, Si x O y C z, ZrO 2, TiO x N y, diamond, diamond-like carbon, and Si u Al v O x N y, wherein the article exhibits an average hardness of about 12 GPa or greater, as measured by a Berkovich Indenter Hardness Test along indentation depths of 100 nm or greater, an average transmittance of 85% or greater over a visible spectrum, and the optical interference layer is configured such that the article exhibits a color shift of 2 or less, when viewed at an incident illumination angle in the range from 2 degrees to 60 degrees from normal incidence under an illuminant comprising CIE A illuminants, CIE B illuminants, CIE C illuminants, CIE D illuminants or CIE F illuminants; wherein color shift is determined by the equation √((a* 2 -a* 1) 2 +(b* 2 -b* 1) 2), where a* 1 and b* 1 are CIE coordinates of the article when viewed at normal incidence and a* 2, and b* 2 are coordinates of the article viewed at the incident illumination angle, and wherein the coordinates of the article when viewed at normal incidence and at the incident illumination angle are both in transmittance or reflectance. a substrate having a physical thickness ranging from 100 μm to 5 mm and having a surface; and an optical film having a physical thickness in the range from 0.1 μm to 3 μm, said optical film being disposed on the substrate surface forming a coated surface, and the optical film comprising a scratch-resistant layer having a physical thickness in the range from 1.5 μm to 3 μm, wherein the optical film further comprises an optical interference layer disposed between the scratch-resistant layer and the substrate; wherein the optical interference layer comprises a physical thickness of 800 nm or less and comprises a first low refractive index sub-layer and a second high RI sub-layer; and wherein the difference between the refractive index of the first low RI sub-layer and the refractive index of the second high RI sub-layer is 0.01 or greater; wherein the first low RI sub-layer comprises SiO 2 or SiO x N y, the second high RI sub-layer comprises at least one of Si u Al v O x N y, AlO x N y, and SiO x N y, and wherein both the first low RI sub-layer and the second high RI sub-layer comprise an optical thickness (n ∗ d) in the range from 2 nm to 200 nm; wherein the scratch-resistant layer comprises at least one of AlN, Si 3 N 4, AlO x N y, SiO x N y, Al 2 O 3, Si x C y, Si x O y C z, ZrO 2, TiO x N y, diamond, diamond-like carbon, and Si u Al v O x N y, wherein the article exhibits an average hardness of about 12 GPa or greater, as measured by a Berkovich Indenter Hardness Test along indentation depths of 100 nm or greater, an average transmittance of 85% or greater over a visible spectrum, and the optical interference layer is configured such that the article exhibits a color shift of 2 or less, when viewed at an incident illumination angle in the range from 2 degrees to 60 degrees from normal incidence under an illuminant comprising CIE A illuminants, CIE B illuminants, CIE C illuminants, CIE D illuminants or CIE F illuminants; wherein color shift is determined by the equation √((a* 2 -a* 1) 2 +(b* 2 -b* 1) 2), where a* 1 and b* 1 are CIE coordinates of the article when viewed at normal incidence and a* 2, and b* 2 are coordinates of the article viewed at the incident illumination angle, and wherein the coordinates of the article when viewed at normal incidence and at the incident illumination angle are both in transmittance or reflectance.