Ultramarine

#18118A

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #18118A, is a deep blue hue with a rich history and diverse applications. Derived from the Latin 'ultramarinus,' meaning 'beyond the sea,' it originally referred to the pigment made from lapis lazuli imported from Asia. This pigment was highly prized for its vibrant color and was often more expensive than gold. Today, synthetic ultramarine pigments offer a more affordable alternative, but the color retains its association with luxury and sophistication. In color theory, ultramarine is considered a cool color, often associated with calmness, depth, and stability. It belongs to the blue family and is characterized by its high saturation and relatively low brightness. Ultramarine is used extensively in art, design, and various industries, owing to its unique visual properties.

The color #18118A, also known as Ultramarine, presents significant accessibility challenges, especially in web design. Its dark hue results in low contrast against lighter backgrounds, potentially making text and interactive elements difficult to read for users with visual impairments. According to WCAG guidelines, sufficient contrast ratios are crucial for ensuring readability. A minimum contrast ratio of 4.5:1 is recommended for standard text and 3:1 for large text. Ultramarine's contrast ratio against white is likely insufficient, requiring designers to choose lighter text colors or employ background color modifications to meet accessibility standards. Using color contrast checkers is essential to verify compliance. Failure to address these issues can exclude users with low vision or color blindness, hindering their ability to access and interact with the content effectively. Consider using this color sparingly for decorative elements rather than crucial text or interactive components.

Shades

Digital Color Formats

RGB
24 17 138
RGB24 17 138
Red
Green
Blue
HSL
243.47 78.06% 30.39%
243.4778.0630.39HSL
Hue
Saturation
Lightness
HWB
243.47 6.67% 45.88%
243.476.6745.88HWB
Hue
Whiteness
Blackness
hex#18118A
rgb24 17 138
hsl243.47 78.06% 30.39%
cmyk82.61% 87.68% 0% 45.88%
hwb243.47 6.67% 45.88%
xyz5.16 2.43 24.24
CMYK
82.61% 87.68% 0% 45.88%
82.6187.68045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.16 2.43 24.24
5.162.4324.24XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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