Ultramarine

#0F188B

General Information about Ultramarine

Ultramarine, represented by the hex code #0f188b, is a deep, rich blue color that evokes feelings of serenity, wisdom, and confidence. Historically, ultramarine was derived from the precious gemstone lapis lazuli, making it one of the most expensive pigments used in painting during the Middle Ages and Renaissance. The name "ultramarine" literally means "beyond the sea," referring to its origin from stones imported into Europe from distant lands. In modern times, synthetic ultramarine is widely available, making it an accessible color for various applications. Its deep hue makes it a popular choice in design, branding, and art, where it's often associated with professionalism, stability, and authority. The color is known for its exceptional lightfastness and durability, making it a valuable asset in applications requiring long-lasting color integrity.

The hex color #0f188b, also known as Ultramarine, presents some accessibility challenges, particularly when used for text. Its dark hue results in a low contrast ratio against standard light backgrounds, which can make it difficult for users with visual impairments to read. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Ultramarine often falls short of these recommendations. To improve accessibility, web developers should pair it with lighter text colors such as white (#ffffff) or a very light shade of gray. It's crucial to test the contrast ratio using online tools to ensure compliance with accessibility standards. Furthermore, avoid using Ultramarine for crucial interactive elements without sufficient contrast, as this can hinder usability for all users, including those with cognitive disabilities.

Shades

Digital Color Formats

RGB
15 24 139
RGB15 24 139
Red
Green
Blue
HSL
235.65 80.52% 30.2%
235.6580.5230.2HSL
Hue
Saturation
Lightness
HWB
235.65 5.88% 45.49%
235.655.8845.49HWB
Hue
Whiteness
Blackness
hex#0F188B
rgb15 24 139
hsl235.65 80.52% 30.2%
cmyk89.21% 82.73% 0% 45.49%
hwb235.65 5.88% 45.49%
xyz5.18 2.62 24.66
CMYK
89.21% 82.73% 0% 45.49%
89.2182.73045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.18 2.62 24.66
5.182.6224.66XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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