Ultramarine

#11188C

General Information about Ultramarine (#11188C)

Ultramarine, represented by the hexadecimal color code #11188C, is a deep and vibrant shade of blue. Historically, Ultramarine was derived from the precious gemstone lapis lazuli, making it a highly prized pigment used in Renaissance paintings and religious art. Today, synthetic Ultramarine is readily available, offering the same rich color at a fraction of the cost. In color theory, Ultramarine is considered a cool color, evoking feelings of calmness, stability, and trust. It is often associated with intelligence, authority, and dignity. Its intense hue makes it suitable for creating a sense of depth and sophistication in various applications, ranging from graphic design to fashion.

The color #11188C, a deep shade of blue known as Ultramarine, presents several accessibility considerations for web developers. Due to its low lightness value, it's crucial to ensure sufficient contrast when used as a background or text color. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text against its background. Using a very light color like white or a pale yellow as foreground text on an Ultramarine background would generally meet these requirements. However, developers should always use contrast checking tools to verify compliance. Additionally, avoid using this color as the sole means of conveying important information, as users with color vision deficiencies may not be able to distinguish it effectively. Providing alternative cues, such as text labels or icons, is essential for inclusive design.

Shades

Digital Color Formats

RGB
17 24 140
RGB17 24 140
Red
Green
Blue
HSL
236.59 78.34% 30.78%
236.5978.3430.78HSL
Hue
Saturation
Lightness
HWB
236.59 6.67% 45.1%
236.596.6745.1HWB
Hue
Whiteness
Blackness
hex#11188C
rgb17 24 140
hsl236.59 78.34% 30.78%
cmyk87.86% 82.86% 0% 45.1%
hwb236.59 6.67% 45.1%
xyz5.29 2.67 25.05
CMYK
87.86% 82.86% 0% 45.1%
87.8682.86045.1CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.29 2.67 25.05
5.292.6725.05XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

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