Advanced Color Control is an After Effects plugin that moves the color properties found in the Color Picker dialog into the Effects & Controls panel. Once there, you can animate those properties or drive them with expressions.
The plugin offers three color models — HSB (Hue Saturation Brightness), HSL (Hue Saturation Lightness) and RGB (Red Green Blue) — so you can work in the one that fits your workflow. Each model comes with two operation modes. In Values Control Color, the default and most-used mode, slider values set the color. In Color Controls Values, you change the color and the related properties update, which helps when you want to extract values for a specific color selection.
Advanced Color Control also automates the creation of Controls with a range of customization, and presents a one-liner interface with labeled elements. It's compatible with After Effects versions from CC through 2024, and a demo video is available.