Class Color

java.lang.Object
Color
public class Color extends Object
Immutable class representing a computer displayable color. Colors are represented using the hexadecimal, rgb, and cmyk methods.

Class-defined colors match CSS usage.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    int
    b
    The amount of Blue in the color (a value between 0 and 255) Using RGB representation.
    static Color
    BLACK
    Constant representation of CSS-compatible Black.
    static Color
    BLUE
    Constant representation of CSS-compatible Blue.
    static Color
    BROWN
    Constant representation of CSS-compatible Brown.
    double
    c
    The amount of Cyan in the color (a value between 0 and 255) using CMYK representation.
    int
    g
    The amount of Green in the color (a value between 0 and 255) Using RGB representation.
    static Color
    GREEN
    Constant representation of CSS-compatible Green.
    int
    hex
    The hex-code representation of the color.
    double
    k
    The CMYK Key value of the color.
    double
    m
    The amount of Magenta in the color (a value between 0 and 255) using CMYK representation.
    static Color
    ORANGE
    Constant representation of CSS-compatible Orange.
    static Color
    PURPLE
    Constant representation of CSS-compatible Purple.
    int
    r
    The amount of Red in the color (a value between 0 and 255).
    static Color
    RED
    Constant representation of CSS-compatible Red.
    static Color
    WHITE
    Constant representation of CSS-compatible White.
    double
    y
    The amount of Yello in the color (a value between 0 and 255) using CMYK representation.
    static Color
    YELLOW
    Constant representation of CSS-compatible Yellow.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Color()
    No args constructor.
    Color​(double c, double m, double y, double k)
    Constructs a color of a given CMYK value.
    Color​(int r, int g, int b)
    Constructs a color of given r, g, and b values.

  • Method Summary

    Modifier and Type
    Method
    Description
    static Color
    mix​(Color x, Color y)
    Gives the color midway between two colors as its "mixture." Mixed color is the average of the rgb values of the two colors.
    static Color
    mix​(Color x, Color y, double ratio)
    Gives the color between x and y with a given weight/ratio applied to x.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • r

      public final int r
      The amount of Red in the color (a value between 0 and 255). Using RGB representation.

    • g

      public final int g
      The amount of Green in the color (a value between 0 and 255) Using RGB representation.

    • b

      public final int b
      The amount of Blue in the color (a value between 0 and 255) Using RGB representation.

    • c

      public final double c
      The amount of Cyan in the color (a value between 0 and 255) using CMYK representation.

    • m

      public final double m
      The amount of Magenta in the color (a value between 0 and 255) using CMYK representation.

    • y

      public final double y
      The amount of Yello in the color (a value between 0 and 255) using CMYK representation.

    • k

      public final double k
      The CMYK Key value of the color.

    • hex

      public final int hex
      The hex-code representation of the color.

    • RED

      public static final Color RED
      Constant representation of CSS-compatible Red.

    • GREEN

      public static final Color GREEN
      Constant representation of CSS-compatible Green.

    • BLUE

      public static final Color BLUE
      Constant representation of CSS-compatible Blue.

    • BROWN

      public static final Color BROWN
      Constant representation of CSS-compatible Brown.

    • ORANGE

      public static final Color ORANGE
      Constant representation of CSS-compatible Orange.

    • PURPLE

      public static final Color PURPLE
      Constant representation of CSS-compatible Purple.

    • YELLOW

      public static final Color YELLOW
      Constant representation of CSS-compatible Yellow.

    • BLACK

      public static final Color BLACK
      Constant representation of CSS-compatible Black.

    • WHITE

      public static final Color WHITE
      Constant representation of CSS-compatible White.

  • Constructor Details

    • Color

      public Color()
      No args constructor. Defaults to black.

    • Color

      public Color​(int r, int g, int b) throws IllegalArgumentException
      Constructs a color of given r, g, and b values.
      Parameters:
      r - the quantity of red in the color (range from 0 to 255)
      g - the quantity of green in the color (range from 0 to 255)
      b - the quantity of blue in the color (range from 0 to 255)
      Throws:
      IllegalArgumentException

    • Color

      public Color​(double c, double m, double y, double k)
      Constructs a color of a given CMYK value.
      Parameters:
      c - amount of Cyan in the color (range from 0 to 1)
      m - amount of Magenta in the color (range from 0 to 1)
      y - amount of Yello in the color (range from 0 to 1)
      k - amount of black (key value) in the color (range from 0 to 1)

  • Method Details

    • mix

      public static Color mix​(Color x, Color y)
      Gives the color midway between two colors as its "mixture." Mixed color is the average of the rgb values of the two colors.
      Parameters:
      x - a color to mix
      y - a second color to mix with x
      Returns:
      a color with the average rgb values of x and y.

    • mix

      public static Color mix​(Color x, Color y, double ratio)
      Gives the color between x and y with a given weight/ratio applied to x. Higher ratio values imply greater weight towards and lower values a higher weight towards y.
      Parameters:
      x - a color to mix
      y - a second color to mix with x
      ratio - the proportion of x in the final mixture
      Returns:
      a Color equivalent to the mixture of x and y with the given weight applied to x.