Ultramarine
General Information about #21009B
The hexadecimal color code #21009B represents a dark shade of blue-violet in the RGB color model. It is composed of 12.9% red, 0% green, and 61.2% blue. In the CMYK color model, it consists of 79% cyan, 100% magenta, 0% yellow, and 39% black. This color is often referred to as ultramarine, which is known for its depth and richness. It is associated with qualities such as wisdom, trust, and intelligence. Historically, ultramarine pigment was derived from the precious stone lapis lazuli, making it a highly valued and expensive color. The digital representation of this color allows for its accessibility and use across various media and applications, from web design to digital art.
The color #21009B, a deep shade of ultramarine, presents some accessibility challenges. Its dark nature means it needs to be paired with very light text (ideally white or a very pale yellow) to ensure sufficient contrast for readability. Using a color contrast checker is highly recommended to meet WCAG guidelines, aiming for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. When used for interactive elements like buttons or links, ensure that hover and focus states also maintain adequate contrast. Avoid using this color for small or intricate icons, as its darkness can obscure details. Also, be mindful of users with visual impairments; providing alternative cues, such as underlines for links or labels for form fields, can improve accessibility. For complex data visualizations, use this color sparingly, opting for lighter and more distinguishable hues for better clarity.
Shades
Digital Color Formats
Alternative colors
Applications
Web and UI Design
In web design, #21009B can be utilized to create a sophisticated and professional aesthetic. It's particularly effective for headers, navigation bars, and call-to-action buttons, conveying a sense of trust and authority. In user interface (UI) design, this color can be used as a primary color for interactive elements, provided sufficient contrast with text and other UI components is maintained. It can also serve as an accent color to highlight important features and guide the user's attention. When used in data visualization, #21009B can represent key data points or trends, adding depth and clarity to the presentation.
Fashion and Apparel
In the fashion industry, #21009B evokes feelings of elegance and sophistication. This color is frequently used in evening wear, formal attire, and accessories. It's a popular choice for creating a sense of luxury and refinement. Its deep hue makes it suitable for items like dresses, suits, and handbags. This color pairs well with metallics such as silver or gold, to further enhance its elegance. Additionally, #21009B can be incorporated into patterns or prints to add depth and visual interest.
Interior Design
#21009B, with its rich and profound character, lends itself beautifully to creating statement walls in living rooms or bedrooms. It can be used to create a focal point, adding depth and drama to the space. When paired with lighter shades like cream or gray, it helps to balance the boldness, preventing the room from feeling too dark. Moreover, this hue serves exceptionally well for accent furniture such as velvet armchairs or decorative pieces, providing a touch of sophistication and luxury. Consider incorporating #21009B in rugs or artwork to tie the room's color scheme together, creating a cohesive and stylish ambiance.