Of course, with the Plugin API, you can create a color style using figma.createPaintStyle().

Thanks a lot!

I was dealing with this recently: here’s a function that creates a color style in the current file:

pEDIT] updated to accept hex string or RGB

// accepts either a hex string or RGB for color parameter

const createColorStyle = (name:string, color:RGB|string, opacity:number = 1, blendMode:BlendMode = 'NORMAL') => {

	// returns input value if already RGB; otherwise converts from hex to RGB

	const convertToRGB = (color:string|RGB) => {

        // can't use typeof here because RGB is an interface type

		if ((color as RGB).hasOwnProperty('r')){

			return color as RGB;

		}

		const hex = (color as String).replace('#','');

		const rgb:RGB = {

			r: parseInt(hex.substr(0,2), 16)/255,

			g: parseInt(hex.substr(2,2), 16)/255,

			b: parseInt(hex.substr(4,2), 16)/255

		}

		return rgb;

	}

	const style = figma.createPaintStyle();

	style.name = name;

	const paint: SolidPaint = {

	    type: "SOLID",

	    color: convertToRGB(color),

	    opacity: opacity,

	    blendMode: blendMode

	}

	style.paints = =paint];

}



//  test it out



const color:RGB = {

	r: 39/255,

	g: 176/255,

	b: 185/255

}

createColorStyle('color from rgb', color);

createColorStyle('color from hex','cccccc');