Ultramarine

#18009B

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #18009B, is a deep and intense shade of blue. It is often associated with royalty, wisdom, and spirituality. The color derives its name from the Latin 'ultramarinus,' meaning 'beyond the sea,' as it was originally made from lapis lazuli imported from Asia. In color theory, Ultramarine is considered a cool color, evoking feelings of calmness and serenity. It belongs to the blue color family and is relatively close to indigo and royal blue. Ultramarine has been used extensively in art, especially during the Renaissance, and continues to be a popular color choice in various design fields. Its high pigment cost throughout history contributed to its association with luxury and prestige. Its spectral properties are mainly focused on the lower wavelength, hence the blue perception.

The hex color #18009b, also known as Ultramarine, presents significant accessibility challenges, particularly in text-based contexts. Its dark hue results in low contrast against common background colors like white, making it difficult for individuals with visual impairments to read. To ensure accessibility, it is essential to use this color with lighter background shades or to pair it with very light text colors like white or a very pale yellow. Following WCAG guidelines for contrast ratios (at least 4.5:1 for normal text and 3:1 for large text) is crucial. Additionally, avoid using #18009b for essential UI elements or interactive components without careful consideration of its contrast. Providing alternative styling options or themes can also enhance accessibility for a broader range of users. Remember to test with accessibility tools to validate contrast levels and overall usability.

Shades

Digital Color Formats

RGB
24 0 155
RGB24 0 155
Red
Green
Blue
HSL
249.29 100% 30.39%
249.2910030.39HSL
Hue
Saturation
Lightness
HWB
249.29 0% 39.22%
249.29039.22HWB
Hue
Whiteness
Blackness
hex#18009B
rgb24 0 155
hsl249.29 100% 30.39%
cmyk84.52% 100% 0% 39.22%
hwb249.29 0% 39.22%
xyz6.29 2.56 31.17
CMYK
84.52% 100% 0% 39.22%
84.52100039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ
6.29 2.56 31.17
6.292.5631.17XYZ
X
Y
Z

Alternative colors

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