Unfortunately you cannot use hex color codes for custom color formatting in Coda, but it does have a custom color picker in the conditional format rule builder.
Coda Docs allows users to add color to cells and rows to highlight different data types. Here's how to add color to a cell in Coda:
Click the Options menu in the top right of the table Select Conditional format in the side panel Select the column to base the conditional formatting rule on Set the color and font options The Coda Community has a resource that includes over 900 colors categorized by Hex Code and RGB Code with included search bar and quick sort to find main colors. Adding A Color Pallette
Yes, you can add a color palette to Coda using the Application Settings:
Open the Colours settings Click the green plus icon to start a new Colour Scheme Name the new Colour Scheme Choose a color to edit by clicking on it from the list, and then use the color picker below to select Add and remove colors from the list using the green plus icon and the red trash bin icon respectively Custom Color Schema
Additional Features