How would i set up this colorful expression?

[Roland R. kahlenberg]

What does your Expression look like?

Cheers
– Roland

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[Richard Garabedain]

its just a wiggle. I did lower the wiggle amount, that helped and will work well enough if i don’t get a definite answer.

[John Cuevas]

You need to give us more information. Did you apply an effect to the layer, or is it a text layer? What is the layer’s original color, how much of the color spectrum do you want to affect–1 channel, all 3 channels? And to Roland’s query, exactly what expression did you apply to the fill?

Johnny Cuevas, Editor
Thinkck.com

“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.

[Walter Soyka]

[Richard Garabedain] “IS there a better expression, or a little extra expression that will tell the color fill to stay out of the black and white areas.”

You almost get this for free by starting with the HSL (Hue/Saturation/Lightness) color model instead of RGB. You can convert between them [link] in your expression.

Vary the hue as much as you like; keep the saturation and lightness within ranges to limit blacks and whites.

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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[Jp Pelc]

I would add a wiggle expression to the hue setting in an HSL effect, not a fill.