ColorCogs+EE

Testing suggested colors:
 * Red #ff000 || Green ##00ff00 || Blue #0000ff ||
 * DarkRed #800000 || DarkGreen #008000 || DarkBlue #000080 ||
 * || Purple #800080 || Teal #008080 ||
 * DarkOrange #cc3300 || Magenta #ff00ff ||  ||
 * Orange #FF6600 || Pink #ff1493 ||  ||
 * Orchid #9900cc || Golden #B8860B || Emerald #00cc99 ||

These are colors I really like on my webpages for math (in descending order of use by rows) Depending on application: I substitute 80 <-> 99. I like to think that these are readable and different. :)
 * Red #ff000 || Green ##00cc00 || Blue #0000ff ||
 * DarkRed #800000 || DarkGreen #008000 || DarkBlue #000080 ||
 * DarkYellow #808000 || Purple #800080 || Teal #008080 ||
 * DarkOrange #cc3300 || Magenta #ff00ff || #cc9900 ||
 * Orange ##ff8040 || DarkPink #ff0099 || #0099cc ||
 * #9900cc ||  || #00cc99 ||

Colors and Equations - LaTeX 68 colors White:
 * Apricot: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BApricot%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Aquamarine: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BAquamarine%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Bittersweet: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BBittersweet%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Black: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BBlack%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Blue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || BlueGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BBlueGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * BlueViolet: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BBlueViolet%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || BrickRed: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BBrickRed%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Brown: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BBrown%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || BurntOrange: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BBurntOrange%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || CadetBlue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BCadetBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || CarnationPink: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BCarnationPink%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * Cerulean: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BCerulean%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || CornflowerBlue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BCornflowerBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Cyan: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BCyan%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Dandelion: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BDandelion%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || DarkOrchid: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BDarkOrchid%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Emerald: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BEmerald%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * ForestGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BForestGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Fuchsia: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BFuchsia%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Goldenrod: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BGoldenrod%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Gray: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BGray%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Green: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || GreenYellow: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BGreenYellow%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * JungleGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BJungleGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Lavender: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BLavender%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || LimeGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BLimeGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Mahogany: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BMahogany%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Maroon: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BMaroon%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||  ||
 * Melon: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BMelon%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || MidnightBlue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BMidnightBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Mulberry: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BMulberry%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || NavyBlue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BNavyBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || OliveGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BOliveGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Orange: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BOrange%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * OrangeRed: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BOrangeRed%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Orhid: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BOrhid%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Peach: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BPeach%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Periwinkle: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BPeriwinkle%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || PineGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BPineGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Plum: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BPlum%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * ProcessBlue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BProcessBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Purple: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BPurple%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || RawSienna: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BRawSienna%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Red: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BRed%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || RedOrange: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BRedOrange%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || RedViolet: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BRedViolet%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * Rhodamine: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BRhodamine%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || RoyalBlue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BRoyalBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || RoyalPurple: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BRoyalPurple%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || RubineRed: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BRubineRed%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Salmon: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BSalmon%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || SeaGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BSeaGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * Sepia: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BSepia%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || SkyBlue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BSkyBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || SpringGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BSpringGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Tan: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BTan%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || TealBlue: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BTealBlue%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Thistle: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BThistle%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * Turquoise: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BTurquoise%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Violet: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BViolet%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || VioletRed: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BVioletRed%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || White: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BWhite%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || WildStrawberry: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BWildStrawberry%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || Yellow: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BYellow%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||
 * YellowGreen: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BYellowGreen%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] || YellowOrange: [[image:http://latex.codecogs.com/gif.latex?%5Cdpi%7B100%7D%20%7B%5Ccolor%7BYellowOrange%7D%203%5Cell%5E2-%5Cfrac%7B%5Clambda%20_n%7D%7Bf_n%7D%7D]] ||  ||   ||   ||

Wikispaces lets you embed LaTeX code directly, but (a) you must remember how each time, (b) you need to know LaTex, (c) no inline equations or resizing, (d) no color at all, ... so my many thanks to CodeCogs for the LaTeX Equation Editor.

math {3{\ell ^2} - \frac{\lambda _n}{f_n}} math