Ultramarine

#1812A2

General Information about Ultramarine

The hex color #1812A2, 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 and saturated hue. Ultramarine is often associated with qualities such as depth, stability, and tranquility. Historically, ultramarine pigment was derived from the precious stone lapis lazuli, making it highly valued and expensive. In color theory, ultramarine can evoke feelings of calmness, confidence, and creativity. It is versatile and can be used in various contexts, from digital design to fashion. Because of its high intensity, it pairs well with lighter colors to create contrast and visual balance. This hue is not only visually appealing, but also rich in history, making it a compelling choice for many applications.

The color #1812A2, a deep ultramarine, presents significant accessibility challenges. Its low luminance of 4.65 cd/m² results in poor contrast against typical background colors like white. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text (14pt bold or 18pt regular). Ultramarine fails to meet these criteria, making it difficult for users with visual impairments to read text rendered in this color. Therefore, using #1812A2 as a text color is inadvisable. Combining it with lighter shades of yellow, orange, or white to increase contrast could enhance accessibility. Designers must carefully test color combinations with tools like contrast checkers to ensure compliance with accessibility standards and provide a positive user experience for everyone, including those with color vision deficiencies.

Shades

Digital Color Formats

RGB
24 18 162
RGB24 18 162
Red
Green
Blue
HSL
242.5 80% 35.29%
242.58035.29HSL
Hue
Saturation
Lightness
HWB
242.5 7.06% 36.47%
242.57.0636.47HWB
Hue
Whiteness
Blackness
hex#1812A2
rgb24 18 162
hsl242.5 80% 35.29%
cmyk85.19% 88.89% 0% 36.47%
hwb242.5 7.06% 36.47%
xyz7.11 3.24 34.43
CMYK
85.19% 88.89% 0% 36.47%
85.1988.89036.47CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.11 3.24 34.43
7.113.2434.43XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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