Ultramarine

#0D0B8D

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #0D0B8D, is a deep, saturated shade of blue. Derived historically from the rare and precious mineral lapis lazuli, its name literally means "beyond the sea," reflecting its origins as a pigment imported to Europe from overseas. In the RGB color model, #0D0B8D consists of 5.1% red, 4.3% green, and 55.3% blue. Its CMYK values are 0.91 cyan, 0.92 magenta, 0.00 yellow, and 0.45 black. This color evokes feelings of depth, stability, and intelligence, commonly associated with royalty and wisdom. Ultramarine's historical significance as a costly pigment contributed to its association with importance, influence and high status. It has applications across diverse fields, from fine art to modern digital design.

The color #0D0B8D, a deep ultramarine, presents some accessibility challenges. Its low lightness value (a mere 5%) means it has poor contrast against common background colors like white. Text rendered in this color on a white background would be difficult for many users to read, particularly those with visual impairments. To improve accessibility, it's recommended to pair #0D0B8D with very light colors like #FFFFFF, #FAF9F6, or #F0F8FF to ensure sufficient contrast. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text as per WCAG guidelines. Consider using contrast checking tools to verify compliance. Avoid using this color for critical information or interactive elements unless proper contrast can be achieved. Using a slightly lighter tint of blue, or adding a text shadow/outline could also improve readability and overall accessibility for users with different visual abilities or impairments, such as color blindness or low vision.

Shades

Digital Color Formats

RGB
13 11 141
RGB13 11 141
Red
Green
Blue
HSL
240.92deg 85.53% 29.8%
240.9285.5329.8HSL
Hue
Saturation
Lightness
HWB
240.92deg 4.31% 44.71%
240.924.3144.71HWB
Hue
Whiteness
Blackness
hex#0D0B8D
rgb13 11 141
hsl240.92deg 85.53% 29.8%
cmyk90.78% 92.2% 0% 44.71%
hwb240.92deg 4.31% 44.71%
xyz-d650.05 0.02 0.25
oklch0.3033 0.193 267.17
oklab0.3033 -0.01 -0.19
CMYK
90.78% 92.2% 0% 44.71%
90.7892.2044.71CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3033 0.193 267.17
0.30330.193267.17LCH
Lightness
Chroma
Hue
OKLAB
0.3033 -0.01 -0.19
0.3033-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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