Ultramarine

#18098E

General Information about Ultramarine (#18098E)

The color #18098E, commonly known as Ultramarine, is a deep, vivid shade of blue. It derives its name from the Latin 'ultramarinus,' meaning 'beyond the sea,' as it was originally made from lapis lazuli imported from Asia. Historically, ultramarine was a highly prized pigment, often more expensive than gold, and was reserved for the most important figures in paintings, such as the Virgin Mary. Today, synthetic ultramarine is widely available, making it a more accessible color. In the RGB color model, #18098E is composed of 9.41% red, 3.53% green, and 55.69% blue. Its hex code representation makes it easily usable in digital design. The color is associated with feelings of depth, stability, and sophistication.

The color #18098E, a deep ultramarine, presents significant accessibility challenges, particularly regarding contrast. When used as a foreground color, it requires a very light background to meet WCAG (Web Content Accessibility Guidelines) standards for sufficient contrast. A light gray or white background is almost essential for readability. Using this color for text on darker backgrounds is strongly discouraged due to the low contrast ratio, which can make it difficult for users, especially those with visual impairments, to discern the text. In user interface design, consider using this color sparingly for decorative elements or as an accent color, rather than for essential information. Providing alternative high-contrast themes or allowing users to customize colors can significantly improve the accessibility of content using this deep shade of blue.

Shades

Digital Color Formats

RGB
24 9 142
RGB24 9 142
Red
Green
Blue
HSL
246.77deg 88.08% 29.61%
246.7788.0829.61HSL
Hue
Saturation
Lightness
HWB
246.77deg 3.53% 44.31%
246.773.5344.31HWB
Hue
Whiteness
Blackness
hex#18098E
rgb24 9 142
hsl246.77deg 88.08% 29.61%
cmyk83.1% 93.66% 0% 44.31%
hwb246.77deg 3.53% 44.31%
xyz-d650.05 0.02 0.26
oklch0.3082 0.1922 270.61
oklab0.3082 0 -0.19
CMYK
83.1% 93.66% 0% 44.31%
83.193.66044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.26
0.050.020.26XYZ
X
Y
Z
OKLCH
0.3082 0.1922 270.61
0.30820.1922270.61LCH
Lightness
Chroma
Hue
OKLAB
0.3082 0 -0.19
0.30820-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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