[Retracted] AHP-Based Analysis Factors Influencing the Construction of a Smart City with Three-Dimensional Regional Color

Table 3

Specific color benchmarks.

Applicable area	Hue	Lightness	Purity
Facade base color palette (approximately 70%-80% of the total facade area)	5YR-5Y series	4.0-9.0	1-6
Auxiliary color of the facade (approximately 15%-25% of the total facade area)	0.1R-5Y series, 5Y-10Y series	3.0 or more	2-6
Accent color of the facade (approximately less than 5% of the total area of the facade)	Full hue	Free	Free
House top color (slope house top)	5R-5Y series	3.0 or less	4.0 or less