Ultramarine

#0A158A

General Information about Ultramarine

The color #0A158A, commonly known as Ultramarine, is a deep, rich shade of blue that belongs to the blue color family. It is characterized by its high saturation and depth, reminiscent of the pigment derived from lapis lazuli, a semi-precious stone that has been used since antiquity. In the RGB color model, #0A158A consists of 3.92% red, 8.24% green, and 54.12% blue. In the CMYK color model, it is composed of 93% cyan, 85% magenta, 0% yellow, and 46% black. Ultramarine is often associated with feelings of calmness, serenity, and wisdom. It can also evoke a sense of sophistication and elegance. Its hexadecimal representation, #0A158A, allows for precise use in digital design and web development, ensuring consistent color representation across different platforms and devices. This color is widely used in both the visual and digital arts to convey depth, stability, and trust.

The hex color #0A158A, also known as Ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its dark hue results in low contrast against lighter backgrounds, making text and graphical elements difficult to discern. To ensure inclusivity, web developers should avoid using this color for text or essential interface components without implementing a high contrast ratio. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text (14pt bold or 18pt regular) is recommended, as per WCAG guidelines. Pairing #0A158A with very light colors, such as white (#FFFFFF) or very light grays, can improve readability. Providing alternative color schemes or allowing users to customize colors is crucial for optimal accessibility. Developers should also use color contrast checkers to verify compliance with accessibility standards before deploying their designs. The accessibility of Ultramarine can be improved by using it for non-essential graphical elements or as a background color behind very light text.

Shades

Digital Color Formats

RGB
10 21 138
RGB10 21 138
Red
Green
Blue
HSL
234.84 86.49% 29.02%
234.8486.4929.02HSL
Hue
Saturation
Lightness
HWB
234.84 3.92% 45.88%
234.843.9245.88HWB
Hue
Whiteness
Blackness
hex#0A158A
rgb10 21 138
hsl234.84 86.49% 29.02%
cmyk92.75% 84.78% 0% 45.88%
hwb234.84 3.92% 45.88%
xyz4.98 2.44 24.25
CMYK
92.75% 84.78% 0% 45.88%
92.7584.78045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ
4.98 2.44 24.25
4.982.4424.25XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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