Ultramarine

#180FA4

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #180FA4, is a deep, vivid blue hue reminiscent of the pigment derived from lapis lazuli. This color sits within the blue spectrum, exuding a sense of depth and intensity. In the RGB color model, it is composed of 9.41% red, 5.88% green, and 64.31% blue. The name "Ultramarine" originates from the Latin "ultramarinus," meaning "beyond the sea," as the pigment historically came from regions beyond the sea for Europeans. It's a color that is generally associated with royalty, wisdom, and spirituality. In the world of color psychology, blues are linked to trust, loyalty, and calmness. Ultramarine is often used to create a sense of stability and confidence.

The hex color #180FA4, Ultramarine, presents a significant challenge for accessibility, especially concerning text legibility. Its deep, saturated blue hue results in low contrast against lighter backgrounds, potentially causing eye strain and difficulty reading for users with visual impairments. When using this color for text, it is imperative to select a very light color for the background and text with a sufficient font size to enhance readability. Moreover, avoid pairing it with colors of similar luminance. Tools like color contrast checkers should be used to ensure compliance with WCAG guidelines. While aesthetically pleasing, its use requires careful consideration to ensure content is accessible to all users, including those with color blindness or low vision. Using this color as a background can be acceptable if the foreground has a bright color like white, yellow, or a bright shade of green.

Shades

Digital Color Formats

RGB
24 15 164
RGB24 15 164
Red
Green
Blue
HSL
243.62deg 83.24% 35.1%
243.6283.2435.1HSL
Hue
Saturation
Lightness
HWB
243.62deg 5.88% 35.69%
243.625.8835.69HWB
Hue
Whiteness
Blackness
hex#180FA4
rgb24 15 164
hsl243.62deg 83.24% 35.1%
cmyk85.37% 90.85% 0% 35.69%
hwb243.62deg 5.88% 35.69%
xyz-d650.07 0.03 0.35
oklch0.3418 0.2137 268.92
oklab0.3418 0 -0.21
CMYK
85.37% 90.85% 0% 35.69%
85.3790.85035.69CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.03 0.35
0.070.030.35XYZ
X
Y
Z
OKLCH
0.3418 0.2137 268.92
0.34180.2137268.92LCH
Lightness
Chroma
Hue
OKLAB
0.3418 0 -0.21
0.34180-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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