Ultramarine

#0D198A

General Information about Ultramarine

The hex color #0d198a, also known as Ultramarine, is a deep and rich shade of blue. It belongs to the blue color family and is often associated with feelings of trust, stability, and intelligence. In the RGB color model, it consists of 5.1% red, 9.8% green, and 54.1% blue. This color is frequently used in various design applications, including web design, graphic design, and interior design, to create a sense of professionalism and sophistication. Ultramarine's historical significance dates back to ancient times when it was derived from the mineral lapis lazuli, making it one of the most expensive pigments. Today, it is synthetically produced, making it more accessible for widespread use. Its unique properties make it a versatile choice for designers seeking to convey a sense of depth and reliability.

The hex color #0d198a, also known as Ultramarine, presents some accessibility challenges. Its dark hue results in a low contrast ratio against a white background, making it difficult for users with visual impairments to read text or distinguish elements. To improve accessibility, consider using a lighter color for text or interactive elements placed on an Ultramarine background. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text to meet WCAG (Web Content Accessibility Guidelines) standards. Tools like contrast checkers can help determine if the color combination provides sufficient contrast. Alternatively, using Ultramarine sparingly and pairing it with more accessible colors can enhance the overall user experience. Furthermore, providing alternative visual cues, such as icons or labels, can aid users who may struggle to differentiate colors.

Shades

Digital Color Formats

RGB
13 25 138
RGB13 25 138
Red
Green
Blue
HSL
234.24deg 82.78% 29.61%
234.2482.7829.61HSL
Hue
Saturation
Lightness
HWB
234.24deg 5.1% 45.88%
234.245.145.88HWB
Hue
Whiteness
Blackness
hex#0D198A
rgb13 25 138
hsl234.24deg 82.78% 29.61%
cmyk90.58% 81.88% 0% 45.88%
hwb234.24deg 5.1% 45.88%
xyz-d650.05 0.03 0.24
oklch0.3139 0.1798 266.85
oklab0.3139 -0.01 -0.18
CMYK
90.58% 81.88% 0% 45.88%
90.5881.88045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.03 0.24
0.050.030.24XYZ
X
Y
Z
OKLCH
0.3139 0.1798 266.85
0.31390.1798266.85LCH
Lightness
Chroma
Hue
OKLAB
0.3139 -0.01 -0.18
0.3139-0.01-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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