Synthesis of Ceramics in Different Colors from Industrial Waste

Table 2

Typical ratios of RGB colors (R: red; G: green; B: blue; 𝐻^∗: color hue; 𝑆^∗: saturation; 𝑉^∗: brightness (𝐻^∗, 𝑆^∗ and 𝑉^∗−0÷360^∘)).

Model	Color ratios
	R	G	B	𝐻^∗	𝑆^∗	𝑉^∗
1	0.437	0.320	0.135	30	0.685	0.439
2	0.417	0.296	0.124	30	0.685	0.414
3	0.353	0.259	0.115	30	0.685	0.351