This truly is a bright yellow! Any shade, from pale yellow to the very brightest can be achieved by controlling the amount put in soap. In CP soap, the color will brighten as the soap neutralizes. In HP soap, it is true to color before pouring. We recommend 1/4 teaspoon per 3 pounds of soap. All color is shipped in powder form. To use, simply add water to the bottle when ready. 1 bottle will hydrate to 2 ounces of highly concentrated color.