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Centaurs with high orbital inclinations and perihelia (i > 60 degrees; q >=15 au) are a small group of poorly understood minor planets that are predictedto enter the giant planet region of the Solar System from the inner Oort Cloud.As such they are one of the few samples of relatively unaltered Oort Cloudmaterial that can currently be directly observed. Here we present two newreflectance spectra of one of the largest of these objects, 2012 DR30, in orderto constrain its color and surface composition. Contrary to reports that 2012DR30 has variable optical color, we find that consistent measurements of itsspectral gradient from most new and published datasets at 0.55-0.8 micron agreewith a spectral gradient of S ~ 10+/-1 %/0.1 micron within their uncertainties.The spectral variability of 2012 DR30 at Near-UV/blue and Near-Infraredwavelengths, however, is still relatively unconstrained; self-consistentrotationally resolved followup observations are needed to characterise anyspectral variation in those regions. We tentatively confirm previous detectionsof water ice on the surface of 2012 DR30 , and also consistently observe asteady steepening of the gradient of its spectrum from wavelengths of around0.6 micron towards Near-UV wavelengths. Plausible surface materials responsiblefor the observed reddening may include ferric oxides contained withinphyllosilicates, and aromatic refractory organics.

Near-UV Reddening Observed in the Reflectance Spectrum of High Inclination Centaur 2012 DR30