0° Reds
background-color: hsl(0, SATURATION, LIGHTNESS);
30° Red-Yellows (Oranges)
background-color: hsl(30, SATURATION, LIGHTNESS);
60° Yellows
background-color: hsl(60, SATURATION, LIGHTNESS);
90° Yellow-Greens
background-color: hsl(90, SATURATION, LIGHTNESS);
120° Greens
background-color: hsl(120, SATURATION, LIGHTNESS);
150° Green-Cyans
background-color: hsl(150, SATURATION, LIGHTNESS);
180° Cyans
background-color: hsl(180, SATURATION, LIGHTNESS);
210° Cyan-Blues
background-color: hsl(210, SATURATION, LIGHTNESS);
240° Blues
background-color: hsl(240, SATURATION, LIGHTNESS);
270° Blue-Magentas
background-color: hsl(270, SATURATION, LIGHTNESS);
300° Magentas
background-color: hsl(300, SATURATION, LIGHTNESS);
330° Magenta-Reds
background-color: hsl(330, SATURATION, LIGHTNESS);