Colors in HTML

The normal way to specify a color in HTML is by it's Hexidecimal number but there are some exceptions.
Here are a few I have found to work by name. There are probably more but these work by specifying :
<color ="black"> instead of <color = "#000000">

 White Black Maroon Lime Purple Cyan or aqua Beige Silver Navy Red Green Magenta or Violet Turquoise Yellow Gray Blue Pink Olive Lavender Teal Orange

Explaining the color numbering system !!!!!!
Ok here goes.

The color number is 6 digits long but can be considered to be 3 pairs of numbers which correspond to the mix of the 3 primary colors.
If you are an artist, like me, you know that the primary colors are Red, Blue and Yellow but this is not art so forget all that and accept that they are now Red, Green and Blue.
In this new world of color, mixing red and green will make yellow when both colors are at their brightest values.
We artists know that it actually makes brown but I suppose yellow could be considered 'bright brown' so we just have to get over it and move on.

Let us ignore for now that these are hexidecimal numbers and throw out all those letters from 'A' to 'F' that you see mixed in.
It is now much easier to understand if we say that 00,00,00 ( the lowest number ) is black and 99,99,99 ( the highest ) is white ( because all 3 colors are at their brightest ).
Now 99,00,00 is red, 00,99,00 is green and 00,00,99 is blue at their brightest values.
Mixing red and green without blue 99,99,00 gives that yellow I mentioned earlier.
Mixing red and blue 99,00,99 gives purple so us artists aren't too confused.
Lowering the number darkens the color so 50,00,50 would be dark purple.
If you have followed me so far it isn't a great leap to understand hexidecimal.

Of course the highest number is not 99 but FF in hexidecimal so the degree of shading is much finer.
Hexidecimal is not that hard to grasp if you stop to consider.
Taking a regular 2 digit decimal number we know that it can give you 100 different values. ( From 0 to 99 ) [ 0 is a number ]
We get that from taking the first digit and multiplying it by 10 and then adding the second digit.
Or the decimal base 10 multiplied by itself equals 100 ( with me so far? )
The hexidecimal digit is worth 16 instead of 10 and because of that they had to add letters to make the extra 6 ( A,B,C,D,E,F )
If you are not mathematically inclined just take my word for it that multiplying the first digit by 16 and then adding the second digit gives 256 possible values.
Or the hexidecimal base 16 multiplied by itself equals 256

Now that you understand the difference you can understand that each pair of numbers can return a value of between 0 and 255 making the degree of color variation much finer than if we used decimal numbers which only give values between 0 and 99.

Here is a chart that gives you colors using only 6 values for each color.
00 = 0
33 = 51
66 =102
99 =153
CC =204
FF =255

 000000 000033 000066 000099 0000CC 0000FF 003300 003333 003366 003399 0033CC 0033FF 006600 006633 006666 006699 0066CC 0066FF 009900 009933 009966 009999 0099CC 0099FF 00CC00 00CC33 00CC66 00CC99 00CCCC 00CCFF 00FF00 00FF33 00FF66 00FF99 00FFCC 00FFFF 330000 330033 330066 330099 3300CC 3300FF 333300 333333 333366 333399 3333CC 3333FF 336600 336633 336666 336699 3366CC 3366FF 339900 339933 339966 339999 3399CC 3399FF 33CC00 33CC33 33CC66 33CC99 33CCCC 33CCFF 33FF00 33FF33 33FF66 33FF99 33FFCC 33FFFF 660000 660033 660066 660099 6600CC 6600FF 663300 663333 663366 663399 6633CC 6633FF 666600 666633 666666 666699 6666CC 6666FF 669900 669933 669966 669999 6699CC 6699FF 66CC00 66CC33 66CC66 66CC99 66CCCC 66CCFF 66FF00 66FF33 66FF66 66FF99 66FFCC 66FFFF 990000 990033 990066 990099 9900CC 9900FF 993300 993333 993366 993399 9933CC 9933FF 996600 996633 996666 996699 9966CC 9966FF 999900 999933 999966 999999 9999CC 9999FF 99CC00 99CC33 99CC66 99CC99 99CCCC 99CCFF 99FF00 99FF33 99FF66 99FF99 99FFCC 99FFFF CC0000 CC0033 CC0066 CC0099 CC00CC CC00FF CC3300 CC3333 CC3366 CC3399 CC33CC CC33FF CC6600 CC6633 CC6666 CC6699 CC66CC CC66FF CC9900 CC9933 CC9966 CC9999 CC99CC CC99FF CCCC00 CCCC33 CCCC66 CCCC99 CCCCCC CCCCFF CCFF00 CCFF33 CCFF66 CCFF99 CCFFCC CCFFFF FF0000 FF0033 FF0066 FF0099 FF00CC FF00FF FF3300 FF3333 FF3366 FF3399 FF33CC FF33FF FF6600 FF6633 FF6666 FF6699 FF66CC FF66FF FF9900 FF9933 FF9966 FF9999 FF99CC FF99FF FFCC00 FFCC33 FFCC66 FFCC99 FFCCCC FFCCFF FFFF00 FFFF33 FFFF66 FFFF99 FFFFCC FFFFFF