Ultramarine
General Information about #100A91
The hex color #100A91 is a deep, saturated shade of blue known as Ultramarine. In the RGB color model, it is composed of 6.27% red, 3.92% green, and 56.86% blue. In the CMYK color model, which is used for printing, it consists of 89% cyan, 93% magenta, 0% yellow, and 43% black. This color is often associated with feelings of trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. It's commonly used in branding and design to convey a sense of stability and authority. The ultramarine pigment was originally derived from the gemstone lapis lazuli, making it a highly prized and expensive color in the past. Today, it is synthetically produced and widely available.
The hex color #100a91, a deep shade of ultramarine, presents specific accessibility challenges. Its low luminance necessitates careful consideration of text and interactive element contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text against backgrounds. When using #100a91 as a background, ensure that foreground text, especially smaller fonts, achieves sufficient contrast. Lighter colors such as whites, yellows or lighter shades of blues and greens are recommended as foreground text colors to provide adequate contrast. Also, avoid using this color for critical information if the user interface does not let the user change colors, because the color is not suited for users with visual impairments. For interactive elements such as buttons and links, consider implementing visual cues beyond color alone, such as underlines or icons, to ensure usability for users with color vision deficiencies. Testing with accessibility tools is recommended to validate contrast ratios and identify potential issues.
Shades
Digital Color Formats
Alternative colors
A slightly lighter shade of blue that offers improved contrast and visibility while maintaining a similar aesthetic appeal.
A more vibrant and attention-grabbing blue, suitable for highlighting key elements or calls to action.
A color further away from the #100A91 color for those who have trouble seeing it.
Applications
Web Development
In web development, #100a91 can be used sparingly to highlight headings, navigational elements, or create a sense of depth and sophistication. This color is best suited for accents, backgrounds, or elements where you want to convey a sense of authority or trustworthiness. Avoid using it for large blocks of text due to its low luminance, which can cause eye strain. A website for a governmental institution could use this color, or a bank. Consider pairing it with lighter, contrasting colors such as whites or light yellows to ensure readability and visual appeal. Remember to test your color choices with accessibility tools to confirm that you meet the necessary contrast ratios.
Fashion
In the fashion industry, #100a91 can be used for formal wear, evening gowns, or accessories where a touch of elegance is desired. This color evokes feelings of luxury and sophistication. It can be paired with metallics such as gold or silver for a glamorous look, or with neutral colors for a more understated style. This blue can be a statement color for people who like deep blue hues. The color is not often seen on clothes, which makes it a unique color to wear on clothes. It is best suited for formal events because of its elegant appearance.
Interiour
#100A91 can give an interiour a very luxurious look. This color can be used as the main color for couches or even walls. Because of the darkness of the color, it is recommended to combine this color with lighter colors such as light grays and whites. If the room is small, it is not recommended to paint the walls with this color, because the room will look even smaller. The color is best suited for a home that has modern or even classic design.