Color

Hex color in number format:

do 0x0000ff

or generate from HSL color:

quatrefoil.core/hslx 200 80 80

HSLuv color based on hsluv:

quatrefoil.core/hsluvx 300 70 90

HCL color is also supported based on d3-color:

quatrefoil.core/hclx 300 70 90