digraph Conversions {
    rankdir=LR

    Hsv
    Hsl
    Hwb
    Hsi
    eHsi
    Rgb
    Rgi
    YCbCr

    XYZ
    xyY
    Lab
    Luv
    LMS
    Lchab
    Lchuv

    {rank = same; Hsv Hsl Hsi eHsi Rgi Hwb};

    Hsv -> Rgb
    Hsl -> Rgb
    Hwb -> Rgb
    Rgi -> Rgb
    Rgb -> Hsv
    Rgb -> Hsl
    Rgb -> Hwb
    Hsv -> Hwb
    Hwb -> Hsv
    Rgb -> Rgi
    Rgb -> Hsi
    YCbCr -> Rgb [color=red];
    Rgb -> YCbCr
    Hsi -> Rgb [color=red];
    Rgb -> eHsi
    eHsi -> Rgb
    eHsi -> Hsi [color=orange];
    Hsi -> eHsi [color=orange];

    Rgb -> XYZ [color=purple];
    XYZ -> Rgb [color=purple];
    XYZ -> xyY
    xyY -> XYZ
    XYZ -> Lab
    Lab -> XYZ
    XYZ -> LMS
    LMS -> XYZ
    XYZ -> Luv
    Luv -> XYZ
    Luv -> Lchuv
    Lchuv -> Luv
    Lab -> Lchab
    Lchab -> Lab
}