The Free On-line Dictionary of Computing (30 December 2018):

hue, saturation, brightness
HSB

    (HSB) A colour model that describes colours in
   terms of hue, saturation, and brightness.

   In the tables below, a hue is a "pure" colour, i.e. one with
   no black or white in it.  A shade is a "dark" colour, i.e. one
   produced by mixing a hue with black.  A tint is a "light"
   colour, i.e. one produced by mixing a hue with white.  A tone
   is a colour produced by mixing a hue with a shade of grey.

   Microsoft Windows colour dialogs, PagePlus, and Paint
   Shop Pro use HSB but call the third dimension "luminosity"
   or "lightness".  It ranges from 0% (black) to 100% (white).  A
   pure hue is 50% luminosity, 100% saturation.

    Colour type   S      L
    Black        Any     0%
    White        Any    100%
    Grey          0%    1-99%
    Hue          100%    50%
    Shade        100%   1-49%
    Tint         100%  51-99%
    Tone         1-99%  1-99%

   Quattro Pro, CorelDraw, and PhotoShop use a variant
   (Quattro Pro calls the third parameter "brightness") in which
   a brightness of 100% can produce white, a pure hue, or
   anything in between, depending on the saturation.

    Colour type   S      B
    Black        Any     0%
    White         0%    100%
    Grey          0%    1-99%
    Hue          100%   100%
    Shade        100%   1-99%
    Tint         1-99%  100%
    Tone         1-99%  1-99%

   [Same as HSV?]

   (1999-07-05)