Ultramarine
General Information about Ultramarine
The hex color #180C8F, also known as Ultramarine, is a deep and rich shade of blue. It belongs to the blue color family and is characterized by its strong presence and depth. In the RGB color model, #180C8F consists of 9.41% red, 4.71% green, and 56.08% blue. This composition gives it a distinctive blue hue with hints of purple. In the CMYK color model, which is used for printing, it is composed of 83% cyan, 91% magenta, 0% yellow, and 44% black. Ultramarine is often associated with feelings of trust, loyalty, and intelligence. It can also evoke a sense of calmness and serenity, making it a popular choice in various design applications, and stands as a prominent member of the blue color palette.
The color #180C8F, also known as Ultramarine, presents some accessibility challenges, especially when used as a foreground color on a white or light background. Its low luminance value (dark color) means that sufficient contrast is crucial for readability. According to WCAG guidelines, the contrast ratio between foreground and background colors should be at least 4.5:1 for normal text and 3:1 for large text (14pt bold or 18pt regular) to meet AA compliance. For AAA compliance, the contrast ratios are even higher, at 7:1 and 4.5:1 respectively. When using #180C8F for text, ensure that the background is a very light color or white to meet these contrast requirements. Alternatively, this color may be more suited for decorative elements or backgrounds with very light foreground elements. Tools like WebAIM's contrast checker can assist in determining if the color combination is accessible.
Shades
Digital Color Formats
Alternative colors
A slightly lighter shade of blue that maintains a similar aesthetic while providing better contrast against light backgrounds.
A desaturated variant that can be used to create a more muted and subtle effect, suitable for backgrounds or decorative elements.
A brighter and more vibrant shade, more modern and fresh
Applications
Web Design
In web design, Ultramarine (#180C8F) can be used for creating a sophisticated and trustworthy feel. It can be used for header backgrounds or as an accent color for buttons and interactive elements. However, due to its dark nature, it's essential to pair it with light text to ensure readability. It also works well in data visualization, where different shades of blue can represent varying data values. For example, a heat map can use this color as one end of the gradient.
Fashion
In fashion, Ultramarine represents a bold and confident color choice. It can be used in both formal wear, such as evening gowns or suits, and in casual wear, like jeans or sweaters. Ultramarine is often paired with neutral colors like white, gray, or black to create a striking contrast. It can also be combined with other vibrant colors such as yellow or red for a more playful and energetic look. The color is suitable for accessories and can be used for handbags, jewelry, and shoes.
Interior Design
In interior design, Ultramarine can bring a sense of depth and sophistication to a space. It is well-suited for accent walls in bedrooms or living rooms, creating a focal point in the room. It can also be used in furniture upholstery, such as sofas or armchairs, adding a touch of elegance. Ultramarine pairs well with metallic accents, such as gold or silver, as well as natural materials like wood and stone. A balanced and harmonious interior can be achieved when combining Ultramarine with muted neutral tones.