Cello
General Information
The hex color #213B57, also known as Cello, is a dark, muted shade of blue-gray. It belongs to the blue color family, exhibiting a sense of calmness and stability. In the RGB color model, #213B57 is composed of 13% red, 23.1% green, and 34.1% blue. Its CMYK values are 0.62, 0.32, 0.00, 0.66, meaning it is made up of 62% cyan, 32% magenta, 0% yellow, and 66% black. This color evokes feelings of sophistication, depth, and tranquility. It is often associated with professionalism and reliability, making it a popular choice in various design applications. Its subtle and understated nature allows it to blend seamlessly with other colors, creating a harmonious and balanced visual experience. The color is often used to represent trust and security.
The hex color #213B57, also known as Cello, presents some accessibility challenges, especially concerning color contrast. When using this color for text or interactive elements, it's crucial to ensure sufficient contrast against the background. According to WCAG guidelines, the contrast ratio should be at least 4.5:1 for normal text and 3:1 for large text. Using online contrast checkers is recommended to verify compliance. In situations where sufficient contrast cannot be achieved directly with #213B57, consider using a lighter shade of text or a darker background. Avoid using this color for conveying critical information without proper contrast, as it may be difficult for users with visual impairments to perceive. Additionally, provide alternative cues like icons or text labels to enhance usability.
Shades
Digital Color Formats
Alternative colors
Applications
Web Design
In web design, #213B57 can be used as a primary color for website headers, navigation bars, or call-to-action buttons to create a sophisticated and professional look. Its dark hue provides a solid base for layering content and graphics. Additionally, this color works well as a background for text-heavy sections, offering a comfortable reading experience. In UI design, it can serve as a secondary color for interactive elements like toggle switches and checkboxes, providing a subtle contrast to the primary brand color. The versatility of #213B57 allows it to blend seamlessly into various design schemes, making it a reliable choice for designers seeking a touch of elegance and depth.
Interior Design
#213B57 is a versatile color in interior design, perfect for creating a calming and sophisticated atmosphere. It works well as an accent color for walls, furniture, or decorative items, adding depth and richness to a space. Pair it with lighter, neutral tones to balance the darkness and prevent the room from feeling too heavy. The color also complements natural materials like wood and stone, enhancing the organic feel of the design. In bedrooms, #213B57 can promote relaxation and improve sleep quality, while in living rooms, it adds a touch of elegance and warmth. Its ability to blend seamlessly with different textures and patterns makes it a favorite among interior designers.
Fashion
In the fashion industry, #213B57 is a chic and timeless color choice. It is often used for creating elegant evening wear, professional business attire, and sophisticated casual outfits. The color's depth and richness make it ideal for garments made from luxurious fabrics like velvet, silk, and cashmere. Accessories in this hue, such as handbags, shoes, and scarves, can add a touch of sophistication to any ensemble. Designers often pair #213B57 with metallic accents like gold or silver to enhance its elegance. Its versatility allows it to be incorporated into various fashion styles, from classic to contemporary, making it a staple in wardrobes worldwide.