Ultramarine

#11178A

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #11178A, is a deep, saturated blue hue that resides in the blue-violet spectrum of color. Historically, ultramarine was derived from the precious gemstone lapis lazuli, making it a highly valued pigment, often reserved for the robes of the Virgin Mary in Renaissance paintings. Today, synthetic ultramarine is widely available. The color is often associated with depth, intelligence, and trust. In color psychology, blue is often linked to feelings of calmness and security, while the violet undertones can add a sense of creativity and spirituality. Ultramarine is a color that brings a sense of both serenity and boldness.

The color #11178A, a deep shade of ultramarine, presents accessibility challenges due to its low luminance. When used as a background color, it necessitates very light text to ensure sufficient contrast for readability, adhering to WCAG guidelines. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended. Individuals with visual impairments may struggle to discern text against this dark background if contrast is insufficient. Therefore, designers should prioritize contrast analysis and provide alternative high-contrast themes or options to enhance usability for all users. Using this color for decorative purposes, where text legibility isn't crucial, mitigates accessibility concerns. Thoughtful application and user-centered design principles are essential when incorporating #11178A into digital interfaces.

Shades

Digital Color Formats

RGB
17 23 138
RGB17 23 138
Red
Green
Blue
HSL
237.02 78.06% 30.39%
237.0278.0630.39HSL
Hue
Saturation
Lightness
HWB
237.02 6.67% 45.88%
237.026.6745.88HWB
Hue
Whiteness
Blackness
hex#11178A
rgb17 23 138
hsl237.02 78.06% 30.39%
cmyk87.68% 83.33% 0% 45.88%
hwb237.02 6.67% 45.88%
xyz5.13 2.57 24.27
CMYK
87.68% 83.33% 0% 45.88%
87.6883.33045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.13 2.57 24.27
5.132.5724.27XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025