Ultramarine

#140B8F

General Information about Ultramarine (#140B8F)

The hex color #140B8F, also known as Ultramarine, is a dark shade of blue that evokes feelings of depth, stability, and trust. It belongs to the blue color family and has a relatively low luminance, making it appear quite dark to the human eye. In the RGB color model, it consists of 7.84% red, 4.31% green, and 56.08% blue. The color is often associated with royalty, intellect, and sophistication. In color psychology, dark blues are often used to represent reliability, security, and responsibility. Ultramarine's historical significance stems from its use in fine art, where it was a highly prized pigment derived from lapis lazuli. Its synthetic versions made it more widely accessible.

The color #140B8F, a deep ultramarine, presents considerable accessibility challenges, particularly in web design. Its low luminance makes it difficult to read when used as text against a white background. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text to meet Level AA compliance. This dark blue typically falls far short of these ratios, necessitating careful consideration. To improve accessibility, pair it with very light colors such as white (#FFFFFF) or bright yellow (#FFFF00) to achieve sufficient contrast. Alternatively, use it sparingly for decorative elements or backgrounds where readability is less critical. Providing alternative high-contrast themes is also a good practice.

Shades

Digital Color Formats

RGB
20 11 143
RGB20 11 143
Red
Green
Blue
HSL
244.09 85.71% 30.2%
244.0985.7130.2HSL
Hue
Saturation
Lightness
HWB
244.09 4.31% 43.92%
244.094.3143.92HWB
Hue
Whiteness
Blackness
hex#140B8F
rgb20 11 143
hsl244.09 85.71% 30.2%
cmyk86.01% 92.31% 0% 43.92%
hwb244.09 4.31% 43.92%
xyz5.37 2.37 26.16
CMYK
86.01% 92.31% 0% 43.92%
86.0192.31043.92CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.37 2.37 26.16
5.372.3726.16XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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