Ultramarine

#0A0C91

General Information about Ultramarine

The hex color #0A0C91, commonly known as Ultramarine, is a deep and intense shade of blue. It belongs to the blue color family and is characterized by its high saturation and relatively low brightness. In the RGB color model, it consists of 3.92% red, 4.71% green, and 56.86% blue. In the CMYK color model, it is composed of 93% cyan, 91% magenta, 0% yellow, and 43% black. Ultramarine's historical significance stems from its origin as a pigment derived from the mineral lapis lazuli. This made it a highly prized color in Renaissance painting, often reserved for depicting important figures and religious scenes. Today, synthetic versions of Ultramarine are readily available, making it accessible for a wide range of applications, from digital design to textile production.

The color #0A0C91, a deep ultramarine, presents several accessibility considerations for web developers. Its low luminance value means it requires careful pairing with contrasting colors to ensure readability. When used as text against a white background, it fails WCAG AA and AAA standards for normal text sizes. However, it might pass for large text (18pt or 14pt bold). To improve accessibility, consider using it with lighter shades of yellow, white, or even light blues as background or text colors. Avoid using it alongside other dark colors, as this will reduce contrast and make it difficult for users with visual impairments to perceive the content. Providing sufficient contrast is crucial for users with low vision or color blindness. Tools like contrast checkers can help determine if the contrast ratio meets accessibility guidelines. Use CSS to specify both foreground and background colors to ensure the intended contrast is maintained.

Shades

Digital Color Formats

RGB
10 12 145
RGB10 12 145
Red
Green
Blue
HSL
239.11 87.1% 30.39%
239.1187.130.39HSL
Hue
Saturation
Lightness
HWB
239.11 3.92% 43.14%
239.113.9243.14HWB
Hue
Whiteness
Blackness
hex#0A0C91
rgb10 12 145
hsl239.11 87.1% 30.39%
cmyk93.1% 91.72% 0% 43.14%
hwb239.11 3.92% 43.14%
xyz5.37 2.37 26.96
CMYK
93.1% 91.72% 0% 43.14%
93.191.72043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.37 2.37 26.96
5.372.3726.96XYZ
X
Y
Z

Alternative colors

Applications

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