invisible ink

How To understand colors
for text and background

invisible ink ?

IF your computer displays the black text on a black background it will act like invisible ink .

So when you highlighted and email or webpage it forces a color change by adding or subtracting a value to the color

*Color*	values
White	FFFFFF
Black	000000
Blue	000099
Yellow	FFFF00
Pink	FFCCFF

The math is a bit tricky because of the hexadecimal values range (base 16) from
0 through 9 , A, B, C, D, E, F (A=10, B=11, C=12, D=13, E=14, F=15)
or 16 levels (or values) stored in 6 places

To convert a number from base 16 to base 10, you read it like this:
43 in base 16 = 4 X 16¹ + 3 X 16⁰ = 64 + 3 = 67 in base 10.
Do the steps in this order

raise the base to the power
multiply the result by the place value
add the result for each place

222222 = real number value (Base 10) of 2,236,962
66FFCC = real number value of 6,750,156
999999 = real number value of 10,066,329
FFFFFF = real number value of 16,777,215

Want to convert some numbers the easy way

So if the value of the Text is 66FFCC and the Background is 66FFCC you do
not see only one color Now you found out more than you wanted to about Color
on Text & backgrounds in email, internet pages

If you want to play a little (on a good computer) click on http://www.noel-1.com/color_test.htm and just move your mouse (do not click) over
the numbers like above.

What basic color is 66FFCC? You should be able to tell with the above color chart

16 Million Different Colors

The combination of Red, Green and Blue values from 0 to 255 gives a total of more than 16 million different colors to play with (256 x 256 x 256).

Most modern monitors are capable of displaying at least 16384 different colors.

If you look at the color table below, you will see the result of varying the red light from 0 to 255, while keeping the green and blue light at zero.

Red Light	HEX	RGB
	#000000	rgb(0,0,0)
	#080000	rgb(8,0,0)
	#100000	rgb(16,0,0)
	#180000	rgb(24,0,0)
	#200000	rgb(32,0,0)
	#280000	rgb(40,0,0)
	#300000	rgb(48,0,0)
	#380000	rgb(56,0,0)
	#400000	rgb(64,0,0)
	#480000	rgb(72,0,0)
	#500000	rgb(80,0,0)
	#580000	rgb(88,0,0)
	#600000	rgb(96,0,0)
	#680000	rgb(104,0,0)
	#700000	rgb(112,0,0)
	#780000	rgb(120,0,0)
	#800000	rgb(128,0,0)
	#880000	rgb(136,0,0)
	#900000	rgb(144,0,0)
	#980000	rgb(152,0,0)
	#A00000	rgb(160,0,0)
	#A80000	rgb(168,0,0)
	#B00000	rgb(176,0,0)
	#B80000	rgb(184,0,0)
	#C00000	rgb(192,0,0)
	#C80000	rgb(200,0,0)
	#D00000	rgb(208,0,0)
	#D80000	rgb(216,0,0)
	#E00000	rgb(224,0,0)
	#E80000	rgb(232,0,0)
	#F00000	rgb(240,0,0)
	#F80000	rgb(248,0,0)
	#FF0000	rgb(255,0,0)

Last update was at 04/07/2008 02:43:16 PM
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