Certainly! Here are a few options for yellow or gold shades that would complement your existing palette, along with explanations for each:

1. Gold ( #FFD700 ):
   • Description: A classic and bright gold that adds a sense of luxury and professionalism.
   • Fit: This color pairs well with the deep blue and green, creating a striking contrast that maintains an elegant feel.
2. Goldenrod ( #DAA520 ):
   • Description: A warm, muted yellow with a hint of brown.
   • Fit: Goldenrod offers a more earthy tone that complements the forest green, providing a harmonious balance without being overly bright.
3. Sunflower Yellow ( #FFC300 ):
   • Description: A vibrant, cheerful yellow that is more saturated.
   • Fit: This shade adds energy and optimism, creating a lively contrast against the deep blue and charcoal gray, which can be great for a forward-thinking medical tech brand.
4. Light Gold ( #E4B700 ):
   • Description: A softer, lighter gold that feels warm and inviting.
   • Fit: This color works well with the overall palette by adding warmth without overpowering the other colors, making it a good choice for a sophisticated yet approachable look.
5. Mustard ( #FFDB58 ):
   • Description: A darker, muted yellow that brings a vintage vibe.
   • Fit: Mustard can add depth and a unique touch to the palette, pairing nicely with the forest green and providing a strong contrast to the deep blue.

Summary

• Gold ( #FFD700 ): Classic luxury and brightness.
• Goldenrod ( #DAA520 ): Warm and earthy, harmonizing with green.
• Sunflower Yellow ( #FFC300 ): Vibrant and energetic, great for innovation.
• Light Gold ( #E4B700 ): Soft and inviting, balances warmth.
• Mustard ( #FFDB58 ): Unique and deeper, contrasts well with blue.

Would you like to choose one of these options, or do you need more information about how to implement these colors?