Cerulean Blue

General Information

Cerulean Blue, represented by the hex code #2154B5, is a captivating and serene shade of blue. This color is a medium-dark hue, often associated with calmness, stability, and depth. In the RGB color model, #2154B5 consists of 13% red, 33% green, and 71% blue. Cerulean Blue's wavelength is approximately 475 nanometers, placing it within the blue region of the visible spectrum. It's a popular color in design, often used to evoke feelings of trust and tranquility. Historically, cerulean blue pigment was created using cobalt stannate and dates back to the late 18th century. Its introduction provided artists with a stable and vibrant blue alternative to ultramarine, which was derived from the rare mineral lapis lazuli and expensive. Cerulean Blue is also used in the printing industry and has applications in fashion and interior design.

The color #2154B5, a deep shade of cerulean blue, presents some accessibility considerations for web developers. Its relatively low luminance value means that careful attention must be paid to contrast ratios, especially when used for text or interactive elements. According to WCAG guidelines, sufficient contrast is crucial for users with visual impairments to perceive content effectively. For normal text (size 12 - 14 pt), a contrast ratio of at least 4.5:1 against the background is recommended. For large text (size 18 pt or greater), a contrast ratio of 3:1 is required. Therefore, when using #2154B5 as a foreground color, it is essential to pair it with a light background to ensure readability. Furthermore, avoid using this color for critical information or actions without proper contrast, and consider providing alternative visual cues, such as icons or underlines, to enhance usability for all users. Using a color contrast checker tool is highly recommended to verify compliance with accessibility standards.

Shades

Digital Color Formats

Alternative colors

Applications

• Web Design and UI/UX

  In user interface (UI) design, #2154B5 can be employed to create a sense of trust and stability. It is often used for primary buttons, navigation bars, and other interactive elements to guide users and establish a clear visual hierarchy. In branding, this color can evoke feelings of professionalism and reliability, making it suitable for financial institutions, technology companies, and educational organizations. The deepness and richness of #2154B5 add a level of sophistication to website designs, enhancing the user experience and reinforcing brand identity. Ensure to balance this with adequate negative space and complementary colors to avoid overwhelming the user.

• Beauty and Fashion

  In the realm of beauty and fashion, #2154B5 can serve as a striking accent color in eyeshadow palettes, eyeliners, or nail polishes. Its depth and intensity bring a sense of elegance and sophistication to any makeup look. When it comes to fashion, this cerulean blue can be incorporated into clothing designs to add a pop of color to an otherwise neutral outfit. It pairs well with both warm and cool tones, making it a versatile choice for creating visually appealing ensembles. This blue can also be used in hair coloring to achieve eye-catching style.

• Interior Design

  When it comes to interior design, #2154B5 can be used to create a calming and inviting atmosphere. Incorporating it into accent walls, furniture pieces, or decorative accessories can add depth and character to any room. It works particularly well in spaces where relaxation is desired, such as bedrooms or living rooms. Pair it with neutral colors like white, gray, or beige to create a balanced and harmonious palette. Accents in metallic finishes like gold or silver can further enhance the richness of the color, adding a touch of luxury and sophistication to the overall aesthetic of the space.

Complementary color

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