Cerulean
General Information about Cerulean (#00A3E0)
Cerulean, represented by the hexadecimal color code #00A3E0, is a vibrant and captivating shade of blue. It is often associated with the sky and the sea, evoking feelings of calmness, tranquility, and openness. In the RGB color model, #00A3E0 consists of 0% red, 63.9% green, and 87.8% blue. This composition gives it a distinct clarity and brightness, making it a popular choice in various design applications. Cerulean's name is derived from the Latin word "caeruleus," meaning dark blue or sky-blue. The color has been used historically in art, fashion, and interior design to create a sense of space, freedom, and inspiration. Its versatility allows it to be paired effectively with a wide range of other colors, from neutrals to complementary hues.
The hex color #00A3E0, also known as Cerulean, presents some accessibility considerations for web developers. Its relatively low luminance value means it requires careful pairing with text and background colors to ensure sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #00A3E0 for text, it's advisable to use light background colors like white (#FFFFFF) or very light grays to achieve acceptable contrast. Conversely, if #00A3E0 is used as a background, dark text colors such as black (#000000) or dark grays should be chosen. Tools like contrast checkers can help verify compliance with accessibility standards. Using this color for decorative purposes or large graphical elements reduces the stringency of contrast requirements.
Shades
Digital Color Formats
Alternative colors
- #29ABE2
A slightly lighter shade of blue that maintains a similar aesthetic while potentially offering better contrast against dark backgrounds.
- #0077B3
A darker shade that provides a stronger contrast ratio against light backgrounds, improving readability.
- #007BA7
A more saturated color that gives a similar feeling.
Applications
Website Design
Cerulean, with its vibrant and calming properties, is perfect for website headers and banners, creating an inviting and professional look. Its ability to evoke trust and reliability makes it well-suited for businesses in finance, technology, and healthcare. This color enhances the overall user experience and effectively communicates the brand's values. In combination with white or light gray, it can achieve a clean and modern aesthetic, reinforcing a sense of competence and innovation.
Branding and Marketing
Cerulean's association with water and sky makes it ideal for branding materials related to travel, tourism, or environmental initiatives. It can be used in logos, brochures, and marketing campaigns to convey a sense of adventure, serenity, and environmental consciousness. The color evokes a sense of exploration and discovery, aligning perfectly with brands that aim to inspire and connect with nature.
Interior Design
In interior design, cerulean can be used as an accent color in bedrooms or bathrooms to create a relaxing and refreshing atmosphere. It pairs well with neutral colors like white, gray, and beige, as well as natural materials like wood and stone. The color promotes tranquility and mental clarity, making it suitable for spaces designed for relaxation and rejuvenation. Accents, like pillows or a small wall, are a good choice.