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Color preference for the interior of a bedroom of Le Corbusier's Swiss Pavilion was studied using 1931 Salubra color keyboards in a cross-cultural analysis. Results indicate that students from architecture and interior design slightly dislike or are indifferent to Le Corbusier color combinations and prefer pale and low saturated colors for interior architecture. The least preferred colors belong to green and brown hues. Scarce significant gender differences are found that follow a stereotyped tendency, with females preferring pinks, light blues and light greens, while males vivid oranges and Vermilions. Near Easterners are significantly more likely to green colors, while Western Europeans to dark greys. These data indicate that not only hue, but also value and saturation are important color features to inform preference for interior architecture.

[EN] Color combination criteria are said to entail an affective response in interior design. We investigated the color combination criteria that orient the preference of current observers, after Le Corbusier's 1931 Salubra keyboards. We explored the similarity/contrast in Natural Color System (NCS) hue, blackness, and chromaticness in 312 combinations with four colors, two backgrounds and two accent colors, coming from 43 individual colors, on the walls of a simulated interior of a bedroom from the Swiss Pavilion (Le Corbusier, 1930-1931). Participants were 644 students of architecture and interior design in Western Europe and Near East, who evaluated with a Likert scale their preference for virtual images via an online survey. Results indicate that the most preferred color combinations are those with hues closer in the color wheel, being the similarity between hues in the backgrounds more important than in the accent colors, and with NCS B30G to G as the most preferred hues. Observers preferred color compositions with blackness under 10% and similar blackness between the two background colors, together with a certain blackness contrast between these background colors and the two color accents. Similarly, observers liked color compositions with low chromaticness and low chromaticness difference among the four colors of the composition.

[EN] Ksour are original architectural models of fortified villages located in the north of Africa. They offer, through their urban and natural visual sceneries, specific visible features that we name them Ksourian Landscapes. The present research, accordingly, addresses an investigation; relying on a new methodic perspective, of the chromatic character of the Ksourian landscape of M'zab valley in Algeria which is listed as an UNESCO World Heritage Site. Using the Natural Color System (NCS), a natural palette (NP) has been conducted; encapsulating 12 representative colors from the natural landscape of the site in congruence with a second palette (human settlements palette), which includes around 16 colors from the urban landscape of the Mozabite Ksour. The primary purpose of this research article aims at identifying perceptual similarities between the two palettes after comparison; which relies upon the NCS nominal identities (blackness [s], whiteness [w], chromaticness [c], yellowness [y], and redness [r]); and the NCS relation identities (hue [phi], saturation [m], delta [], and beta []). Graphical representations of these comparisons are demonstrated in the NCS triangle and the NCS 3D color space. We have demonstrated through our experimental outcomes the strong chromatic integration of the urban settlements in their natural landscape, the original chromatic character as being a constituent of the heritage values of the Mozabite Ksourian landscape, as well as its possible use in the urban restoration processes., The authors gratefully acknowledge the generous financial support received from the University of Mostaganem that provided internships in Istanbul and Valencia.