Re: Best online depiction of pastel stick colors?
I find searching for accurate colors online is a gamble, at best.
This may not solve your immediate problem, but what I do is collect the color sample brochures printed by the manufacturers, cut them into strips and make a color swatch of the real thing below it. That way I have color name and number, the way it looks in print and the way it looks in reality all in one place. When I go online I can ignore the colors and purchase the correct hue via name and number.
Of course, if you don't have the color and are looking to decide what to buy online, you have to approximate, in which case the advice you have from Chris and Jan is good, IMHO. If that's the case, it's often helpful to ask the folks here to help you out! Tell them what color you're looking for and see what they say...