Ultramarine

#010B9A

About Ultramarine

Ultramarine, represented by the hexadecimal color code #010B9A, is a deep, vivid shade of blue. It is named after the pigment derived from lapis lazuli, a semi-precious stone that was historically ground into powder for use as a pigment, especially in Renaissance paintings. This pigment was highly prized for its exceptional brilliance and permanence. In the RGB color model, #010B9A is composed of 0.4% red, 4.3% green, and 60.4% blue. In the CMYK color model, it consists of 99% cyan, 91% magenta, 0% yellow, and 39% black. Ultramarine is often associated with royalty, spirituality, and wisdom. It evokes feelings of calmness, trust, and authority. Its intense blue hue makes it suitable for designs aiming to project confidence and stability.

The hex color #010B9A, also known as Ultramarine, presents significant accessibility challenges, especially when used for text or interactive elements. Due to its very dark hue, it offers extremely low contrast against light backgrounds like white or pale yellow. This can make content difficult or even impossible for users with visual impairments to read. According to WCAG (Web Content Accessibility Guidelines), sufficient contrast is crucial for readability. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Ultramarine likely fails to meet these standards with most light-colored backgrounds, potentially excluding a significant portion of users. To improve accessibility, consider using Ultramarine sparingly, primarily as an accent color, and always pair it with high-contrast foreground and background colors. Tools are available to check the contrast ratio between colors to ensure compliance with accessibility guidelines. Lighter shades of blue or other contrasting colors can be tested as foreground colors.

Shades

Digital Color Formats

RGB
1 11 154
RGB1 11 154
Red
Green
Blue
HSL
236.08 98.71% 30.39%
236.0898.7130.39HSL
Hue
Saturation
Lightness
HWB
236.08 0.39% 39.61%
236.080.3939.61HWB
Hue
Whiteness
Blackness
hex#010B9A
rgb1 11 154
hsl236.08 98.71% 30.39%
cmyk99.35% 92.86% 0% 39.61%
hwb236.08 0.39% 39.61%
xyz5.96 2.58 30.76
CMYK
99.35% 92.86% 0% 39.61%
99.3592.86039.61CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.96 2.58 30.76
5.962.5830.76XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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