Ultramarine
General Information about #0B158D
The hex color #0B158D, also known as Ultramarine, is a deep shade of blue with a strong presence. It's composed of 4.3% red, 8.2% green, and 55.3% blue. In the RGB color model, it has values of R:11, G:21, B:141. In the CMYK color model, its values are C:92, M:85, Y:0, K:45. Ultramarine's hex code identifies a hue that is often associated with depth, stability, and intelligence. It is a color that evokes a sense of calmness, authority, and sophistication. Historically, ultramarine pigment was derived from the semi-precious stone lapis lazuli, making it a highly prized and expensive color used in art and decoration.
The color #0B158D, a deep ultramarine, presents considerable accessibility challenges. Its low luminance value of 3 and contrast ratio against white of approximately 5:1 fail to meet WCAG (Web Content Accessibility Guidelines) AA standards for normal text (4.5:1) and large text (3:1). This means that text using this color on a white background may be difficult for users with visual impairments to read comfortably. To improve accessibility, consider using this color for decorative elements or backgrounds rather than for essential text. If used for text, ensure a very light color such as white or a very pale yellow is used as a contrasting foreground. Also, avoid using this color to convey essential information without an alternative, more accessible indicator.
Shades
Digital Color Formats
Alternative colors
Applications
Web Design
In web design, #0B158D can be used as a primary color for a website or application that aims to convey a sense of trust, security, and sophistication. The dark, rich hue is appropriate for financial institutions, educational platforms, or corporate websites that require a professional and authoritative aesthetic. Consider using it sparingly for headings, borders, or call-to-action buttons, paired with lighter, more accessible background and text colors to ensure readability and a balanced visual experience.
Fashion
In fashion, this shade of ultramarine can be incorporated into evening wear, accessories, or statement pieces to create a bold and elegant look. The color works well with metallic accents such as gold or silver, as well as contrasting textures like velvet or silk. It could also be used as an accent color in footwear, adding a touch of sophistication to more casual outfits. This shade is suited for cooler skin tones, and should be balanced with neutral or lighter colors for a harmonious effect.
Interior Design
In interior design, #0B158D can be applied as an accent wall color in a study or living room to create a calming and intellectual atmosphere. The color is best used in spaces with ample natural light to prevent the room from feeling too dark or enclosed. It pairs well with natural wood tones, neutral furniture, and metallic accents like brass or copper. Consider using it for upholstery, cushions, or decorative elements like vases or artwork to add a pop of color without overwhelming the space.