Color: Blue
Complete color information and conversion tools for Blue
Convert Blue to all major color formats. Click any value to copy to clipboard.
Test Blue for accessibility compliance and color contrast ratios.
Basic Contrast Ratios
WCAG 2.1 Compliance
Required ratio: 4.5:1
Required ratio: 3:1
Required ratio: 7:1
Required ratio: 4.5:1
Usage Recommendations
✓ Excellent for accessibility
This color meets AAA standards and is suitable for all text sizes and UI elements.
Recommended text color: Use #FFFFFF text for optimal readability on Blue backgrounds.
Colors similar to Blue based on hue and saturation.
About Blue Color
The Blue color (#0000FF) is a blue color that belongs to the web-safe color palette. This comprehensive guide covers everything you need to know about Blue, including its technical specifications, psychological impact, design applications, and practical usage examples.
Blue has the hexadecimal code #0000FF and RGB values of 0, 0, 255. In the HSL color space, it has a hue of 240°, saturation of 100%, and lightness of 50%. This color is widely supported across all browsers and design applications.
Discover the psychological impact and cultural significance of Blue.
Associated Emotions
Trust, calm, stability, peace, loyalty, sadness
Symbolism & Meaning
Reliability, professionalism, security, tranquility
Marketing & Branding
Builds trust, promotes calmness, professional appearance
Learn how to effectively use Blue in various design contexts.
Web Design
- • Headers
- • Links
- • Corporate themes
- • Trust indicators
- • Professional layouts
Interior Design
- • Bedrooms
- • Bathrooms
- • Office spaces
- • Coastal themes
Graphic Design
- • Corporate branding
- • Healthcare materials
- • Technology themes
- • Professional presentations
Fashion & Clothing
- • Business attire
- • Denim
- • Formal wear
- • Casual shirts
Complete technical details and color space information for Blue.
Color Temperature
Dominant Wavelength
Color Purity
Brightness Index
Real-world examples and code snippets showing how to use Blue.
CSS Examples
Design Tips & Best Practices
When using Blue in your designs, consider its psychological impact and cultural associations. This color works well in web design, branding, and marketing materials and can be effectively paired with complementary colors to create striking visual compositions.
Accessibility Considerations
When using Blue as a text or background color, ensure sufficient contrast ratios for accessibility compliance. Test your color combinations against WCAG guidelines to ensure readability for all users.