Ultramarine

#11118A

General Information about #11118A (Ultramarine)

The hexadecimal color code #11118A represents a dark shade of blue, often referred to as Ultramarine. It's composed of 6.67% red, 6.67% green, and 54.12% blue. In the RGB color model, it is defined by the values R:17, G:17, and B:138. In the CMYK color model, it consists of 88% cyan, 88% magenta, 0% yellow, and 46% black. The color lies primarily in the blue region of the color spectrum. Ultramarine, historically derived from the precious mineral lapis lazuli, has been valued for its deep, rich hue. Today, synthetic pigments provide a consistent and readily available alternative for achieving this specific shade of blue.

The hex color #11118A, also known as Ultramarine, presents significant accessibility challenges, especially for users with visual impairments. Its low lightness value (approximately 7%) results in very poor contrast against standard white backgrounds. According to WCAG guidelines, the contrast ratio is well below the minimum requirement of 4.5:1 for normal text and 3:1 for large text. Therefore, using #11118A for text on a white background is strongly discouraged. To improve accessibility, consider using lighter shades of blue or pairing it with a very light color such as #FFFFFF, ensuring a sufficient contrast ratio. Tools like contrast checkers can help assess the readability of text using this color. Alternative design strategies might involve using #11118A sparingly for decorative elements rather than essential information.

Shades

Digital Color Formats

RGB
17 17 138
RGB17 17 138
Red
Green
Blue
HSL
240 78.06% 30.39%
24078.0630.39HSL
Hue
Saturation
Lightness
HWB
240 6.67% 45.88%
2406.6745.88HWB
Hue
Whiteness
Blackness
hex#11118A
rgb17 17 138
hsl240 78.06% 30.39%
cmyk87.68% 87.68% 0% 45.88%
hwb240 6.67% 45.88%
xyz5.02 2.36 24.23
CMYK
87.68% 87.68% 0% 45.88%
87.6887.68045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.02 2.36 24.23
5.022.3624.23XYZ
X
Y
Z

Alternative colors

Applications

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