To ensure that the colors in your palette provide adequate contrast, let’s analyze the contrast ratios based on the WCAG (Web Content Accessibility Guidelines) standards, specifically the AA level of contrast.

1. Contrast of Accents with Blues

Accents:

• Vibrant Coral ( #FF4040 )
• Bright Lemon Yellow ( #FFE135 )

Blues:

• Deep Aqua ( #4B9DC3 )
• Ocean Blue ( #3A8BB0 )
• Dark Turquoise ( #7FB8B8 )

Contrast Ratios:

• Vibrant Coral ( #FF4040 ) vs. Deep Aqua ( #4B9DC3 ): This combination generally has a good contrast, making it suitable for text or buttons overlaying a blue background.
• Vibrant Coral ( #FF4040 ) vs. Ocean Blue ( #3A8BB0 ): This combination should also provide sufficient contrast.

• Vibrant Coral ( #FF4040 ) vs. Dark Turquoise ( #7FB8B8 ): This may have lower contrast; consider using a lighter or darker variant of coral for better visibility.

• Bright Lemon Yellow ( #FFE135 ) vs. Deep Aqua ( #4B9DC3 ): This combination provides high contrast.
• Bright Lemon Yellow ( #FFE135 ) vs. Ocean Blue ( #3A8BB0 ): This combination also has good contrast.
• Bright Lemon Yellow ( #FFE135 ) vs. Dark Turquoise ( #7FB8B8 ): This combination may be less effective due to the brightness of yellow against a similar brightness of turquoise.

2. Contrast of Blues with Black and White

• Deep Aqua ( #4B9DC3 ) vs. Black ( #000000 ): This color combination offers good contrast and should be readable.

• Deep Aqua ( #4B9DC3 ) vs. White ( #FFFFFF ): This combination has a decent contrast, but text might need to be bolded or adjusted for clarity.

• Ocean Blue ( #3A8BB0 ) vs. Black ( #000000 ): This has strong contrast and should be very readable.

• Ocean Blue ( #3A8BB0 ) vs. White ( #FFFFFF ): This combination should work well, but again, ensure clarity in text weight.

• Dark Turquoise ( #7FB8B8 ) vs. Black ( #000000 ): This combination provides good contrast.
• Dark Turquoise ( #7FB8B8 ) vs. White ( #FFFFFF ): This will also have decent contrast, though it may require careful font choices for readability.

Summary

• Accents vs. Blues: The vibrant coral and bright lemon yellow provide good contrast with the blues but may require slight adjustments for optimal readability.
• Blues vs. Black/White: All blues have adequate contrast against black, and most have decent contrast against white.

Recommendations

• Consider testing your color combinations in real design mockups to ensure readability and visual appeal.
• Adjust the brightness or saturation of colors if certain combinations do not meet contrast requirements.

Would you like assistance with specific design mockups or tools for testing color contrast?