Laue diffraction with x-rays is common to determine symmetry and crystal structure of natural crystals. Extension of the method towards visible light failed so far due to lack of crystals in nature with lattice parameters in the range of visible light. Nowadays artificially three-dimensional crystals known as photonic crystals (PCs) are available. However, in contrast to x-rays diffraction from small crystals described by the kinematic scattering approach, scattering of visible light from PCs suffers from the large contrast and the tensor character of refractive index originating multiple scattering of probing light. In this paper we show the Laue scattering with visible light at PCs with internal refractive index contrast less then 1%. The Laue pattern shows colour separation and displays the crystal symmetry. Scattering curves of individual Laue spots taken with monochromatic light can be well described by kinematic scattering. Both results demonstrate the applicability of such crystals for spectral filtering.© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.