<Cold Grump King> 
1. Deep Maroon - 
          
          #6A1B2A
        - A rich, dark red that reflects the king's hair and symbolizes his grumpy demeanor. 
2. Frosty Blue - 
          
          #A4C8E1
        - A cool, icy blue that represents the coldness he feels, contrasting sharply with the deep maroon. 
3. Steel Gray - 
          
          #4B4F54
        - A muted gray that adds a sense of heaviness and gloom, mirroring his cold personality. 
4. Midnight Black - 
          
          #1C1C1C
        - A solid black that conveys depth and adds an air of authority, perfect for a king. 
5. Silver Moonlight - 
          
          #C0C0C0
        - A soft silver that provides a glimmer of hope and light, breaking through the king's grumpy façade.

This color palette evokes a sense of coldness and grumpiness, while also incorporating rich colors that symbolize the character of a king with dark red hair.

What specific applications do you have in mind for this color palette? Are you looking for designs for a character, a website, or something else?