Ultramarine

#0A1091

General Information about Ultramarine

The hex color #0A1091, also known as Ultramarine, is a deep and rich shade of blue. It belongs to the blue color family and is characterized by its strong saturation and relatively low brightness. In the RGB color model, #0A1091 is composed of 3.92% red, 6.27% green, and 56.86% blue. This combination results in a color that evokes feelings of calmness, stability, and depth. Ultramarine has a long history, dating back to ancient times when it was derived from the mineral lapis lazuli. Due to its rarity and cost, it was highly prized and often associated with royalty and religious figures. Today, synthetic ultramarine is widely available, making it a popular choice for various applications, including art, design, and fashion. Its unique hue and historical significance continue to make it a captivating color.

The color #0A1091, a deep shade of ultramarine, presents significant accessibility challenges, particularly in text-based applications. Its low luminance value (approximately 2%) necessitates very high contrast ratios with foreground elements to ensure readability for individuals with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text against background colors. To meet these standards, when using #0A1091 as a background, foreground text should ideally be white (#FFFFFF) or a very light color. Using darker foreground colors would result in insufficient contrast, making content difficult to perceive, especially for users with low vision or color blindness. Careful consideration of color contrast is essential to create inclusive and accessible web experiences.

Shades

Digital Color Formats

RGB
10 16 145
RGB10 16 145
Red
Green
Blue
HSL
237.33 87.1% 30.39%
237.3387.130.39HSL
Hue
Saturation
Lightness
HWB
237.33 3.92% 43.14%
237.333.9243.14HWB
Hue
Whiteness
Blackness
hex#0A1091
rgb10 16 145
hsl237.33 87.1% 30.39%
cmyk93.1% 88.97% 0% 43.14%
hwb237.33 3.92% 43.14%
xyz5.42 2.48 26.98
CMYK
93.1% 88.97% 0% 43.14%
93.188.97043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.42 2.48 26.98
5.422.4826.98XYZ
X
Y
Z

Alternative colors

Applications

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