Cerulean Blue
General Information about Cerulean Blue
Cerulean blue, represented by the hexadecimal color code #304BB6, is a distinct shade of blue that sits between azure and sky blue on the color spectrum. It derives its name from the Latin word "caeruleus," meaning "dark blue" or "sky-blue." This particular hue is characterized by its medium saturation and moderate brightness, making it a versatile choice for various design applications. In color theory, cerulean blue is often associated with feelings of calmness, peace, and stability. It can evoke a sense of trust and reliability, which is why it's frequently used in branding for companies in industries like finance, healthcare, and technology. The color's hex code translates to 19.8% red, 29.4% green, and 71.4% blue. This mixture of primary colors creates the unique characteristics of cerulean blue, setting it apart from other shades of blue.
The color #304BB6, a shade of cerulean blue, presents some accessibility challenges, particularly in text applications. Its luminance value is not high, requiring careful consideration of the background color against which it's used. According to WCAG guidelines, sufficient contrast is crucial for readability. For text, a contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text (14pt bold or 18pt regular). When using #304BB6 for text, lighter background colors such as whites, light yellows, or very pale greens are necessary to achieve acceptable contrast. Using it on dark backgrounds will likely result in illegible text. In graphical elements, ensure that important information isn't solely conveyed through this color. Providing alternative cues like labels or textures enhances accessibility for users with visual impairments or color blindness. Always test color combinations with accessibility evaluation tools to confirm compliance with accessibility standards.
Shades
Digital Color Formats
Alternative colors
Applications
Web Design
In web design, cerulean blue (#304BB6) can be used to create a sense of calmness and trust. It's suitable for websites related to healthcare, finance, or education. As a primary color, use it sparingly and balance it with neutral tones. As a secondary color, it can highlight important calls to action or create visual interest. It's also effective for infographics and data visualizations where clarity and readability are essential. In UI design, cerulean blue can be used for buttons, links, and other interactive elements.
Interior Design
In interior design, cerulean blue (#304BB6) evokes feelings of serenity and openness, making it a great choice for bedrooms, bathrooms, or home offices. It can be incorporated through wall paint, accent furniture, or decorative accessories. When combined with white or light gray, it creates a fresh and airy atmosphere. For a more dramatic look, pair it with dark wood tones or metallic accents. It's essential to consider the amount of natural light in the space to ensure the color doesn't appear too dark or overwhelming.
Fashion
In fashion, cerulean blue (#304BB6) is versatile and can be worn in various ways. It works well for both casual and formal attire. A cerulean blue dress or blouse can be paired with neutral-colored accessories for a sophisticated look. For a more playful outfit, combine it with contrasting colors like yellow or orange. In sportswear, it can be used as an accent color to add energy and vibrancy. Consider skin tone when choosing cerulean blue clothing. People with fair skin may find that it complements their complexion, while those with darker skin tones can use it as a statement piece.