A number of studies suggest that there are some universally agreed human aesthetic responses to natural environments. A study by Kakehashi (et al) has found certain colour combinations in Papilionade butterflies preferred by humans. Supported by findings from the field of neuroaesthetics, that colour harmony is aesthetically pleasing to humans , and in experimental psychology “that human perception of colour combinations in nature are perceived as harmonious” Her study using human preferences of butterflies has found:
- dominant low lightness and contrasting lightness components
- dominant low chroma and similar chroma components
- dominant orange to yellow-green hue and similar hue components
and that : “We believe that the cognitive effects of processing fluency in these colour combination rules influence human aesthetic responses.”