Ultramarine

#0B11A8

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #0B11A8, is a deep and vibrant shade of blue. Historically, Ultramarine was derived from the precious mineral lapis lazuli, making it one of the most expensive and prized pigments used by Renaissance artists. Its name literally means "beyond the sea," referring to its origin from central Asia. In color theory, Ultramarine evokes feelings of calmness, serenity, and stability. It is often associated with trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. In modern usage, Ultramarine remains a popular choice for branding, graphic design, and web design, often employed to convey a sense of professionalism, reliability, and sophistication. Its rich hue also makes it a favorite in artistic endeavors and decorative applications.

The hex color #0B11A8, Ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value necessitates careful consideration of contrast ratios when used for text or interactive elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text against its background. Using white text on an Ultramarine background might meet the contrast requirements for large text, but it likely fails for normal text sizes. To enhance accessibility, consider using lighter shades of blues or vibrant yellows and oranges for foreground elements. Additionally, providing alternative text descriptions for images or icons using this color is crucial for users relying on screen readers. Designers should also avoid using #0B11A8 as the sole indicator for interactive elements, as colorblind users may not perceive the difference.

Shades

Digital Color Formats

RGB
11 17 168
RGB11 17 168
Red
Green
Blue
HSL
237.71 87.71% 35.1%
237.7187.7135.1HSL
Hue
Saturation
Lightness
HWB
237.71 4.31% 34.12%
237.714.3134.12HWB
Hue
Whiteness
Blackness
hex#0B11A8
rgb11 17 168
hsl237.71 87.71% 35.1%
cmyk93.45% 89.88% 0% 34.12%
hwb237.71 4.31% 34.12%
xyz7.41 3.3 37.29
CMYK
93.45% 89.88% 0% 34.12%
93.4589.88034.12CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.41 3.3 37.29
7.413.337.29XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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