Dark Blue
General Information about #0D21D9
The hexadecimal color #0D21D9, also known as Dark Blue, is a deep, rich blue hue. It is composed of 5.1% red, 13% green, and 85.1% blue. In the RGB color model, it is represented as (13, 33, 217). The corresponding CMYK values are (94, 85, 0, 15), meaning it consists of a high percentage of cyan and magenta with minimal yellow and black. This color is often associated with qualities such as trust, stability, and intelligence. It is commonly used in corporate branding and designs where a sense of professionalism and reliability is desired.
The color #0d21d9, a deep dark blue, presents significant accessibility challenges. Its low lightness value results in poor contrast against light backgrounds, making text and interface elements difficult to read for users with visual impairments. According to WCAG guidelines, sufficient contrast is crucial for ensuring content is perceivable. To improve accessibility, consider using this color with very light backgrounds or pairing it with lighter shades of blue or complementary colors like yellow for text. For crucial elements, ensure a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Tools like contrast checkers can help assess compliance. Avoid using this color for small icons or detailed graphics where clarity is paramount. Testing with users with different visual abilities is recommended to validate accessibility improvements.
Shades
Digital Color Formats
Alternative colors
Applications
Web Design
In web design, this dark blue (#0d21d9) can serve as a strong accent color or a primary color for websites aiming for a sophisticated or corporate feel. It is often used for navigation bars, headers, and buttons, particularly when paired with lighter text to ensure readability. Its depth can also be leveraged in backgrounds to create a sense of depth and professionalism. However, care must be taken to ensure sufficient contrast to meet accessibility standards, especially for text-heavy sections. This color can effectively communicate trust and stability.
Interior Design
In interior design, this dark blue hue is well-suited for creating a calming and sophisticated atmosphere. It can be used as an accent wall color in bedrooms or living rooms, or as the primary color for furniture upholstery. Paired with lighter neutrals or warm wood tones, it adds depth and elegance to the space. It also works well in studies or home offices to promote concentration. When using this color, consider the lighting of the room to avoid the space feeling too dark or enclosed.
Fashion
In fashion, this dark blue is a classic and versatile choice. It can be used in evening wear for a formal and elegant look, or in casual wear for a more relaxed vibe. It pairs well with a variety of colors, including white, gold, and silver. Consider using it for dresses, suits, or accessories like scarves and handbags. Also consider that this color can be used in the beauty sector to design for example eyeliners or nail polish.