Ultramarine

#180A8E

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #180A8E, is a deep and intense shade of blue that evokes feelings of sophistication, mystery, and depth. Historically, Ultramarine was derived from the precious stone lapis lazuli, making it a pigment highly valued by artists throughout the ages. Its rich and vibrant hue has been used in iconic works of art, from Renaissance paintings to contemporary designs. In color psychology, Ultramarine is often associated with intelligence, trust, and authority. It is a color that commands attention and creates a sense of awe and wonder. The color can also symbolize peace, tranquility, and spirituality. In modern usage, Ultramarine finds its application in various fields, including graphic design, web development, and interior decoration, where its depth and elegance can enhance visual aesthetics.

The color #180A8E, also known as Ultramarine, presents significant accessibility challenges due to its dark hue and low luminance. When used as a foreground color, it requires a very light background to meet WCAG (Web Content Accessibility Guidelines) standards for contrast. Insufficient contrast can make text difficult to read for users with visual impairments, including those with low vision or color blindness. Therefore, it is crucial to carefully evaluate color combinations and ensure a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Providing alternative color schemes and allowing users to customize the color settings can greatly enhance accessibility and inclusivity. Avoid using this color for crucial information without proper contrast to ensure all users can perceive and understand the content effectively.

Shades

Digital Color Formats

RGB
24 10 142
RGB24 10 142
Red
Green
Blue
HSL
246.36deg 86.84% 29.8%
246.3686.8429.8HSL
Hue
Saturation
Lightness
HWB
246.36deg 3.92% 44.31%
246.363.9244.31HWB
Hue
Whiteness
Blackness
hex#180A8E
rgb24 10 142
hsl246.36deg 86.84% 29.8%
cmyk83.1% 92.96% 0% 44.31%
hwb246.36deg 3.92% 44.31%
xyz-d650.05 0.02 0.26
oklch0.3089 0.1917 270.58
oklab0.3089 0 -0.19
CMYK
83.1% 92.96% 0% 44.31%
83.192.96044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.26
0.050.020.26XYZ
X
Y
Z
OKLCH
0.3089 0.1917 270.58
0.30890.1917270.58LCH
Lightness
Chroma
Hue
OKLAB
0.3089 0 -0.19
0.30890-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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