Ultramarine

#1C118A

General Information about Ultramarine (#1C118A)

#1C118A, also known as Ultramarine, is a deep, rich blue hue with a strong presence. In the RGB color model, it is composed of 11.0% red, 6.7% green, and 54.1% blue. Its hexadecimal representation, #1C118A, is commonly used in web design and graphic arts. Ultramarine historically comes from the precious stone lapis lazuli, making it a pigment prized throughout history. This color is often associated with feelings of depth, stability, and authority. It finds applications across diverse fields, from digital interfaces to fashion, conveying both a sense of seriousness and elegance. Understanding the properties of #1C118A allows for its effective use in visual communication.

The color #1C118A, a deep ultramarine, presents significant accessibility challenges, particularly when used as text against a white or light-colored background. Its low luminance value results in poor contrast, making it difficult for individuals with visual impairments to read. According to WCAG guidelines, sufficient contrast is crucial for readability. To improve accessibility, consider using #1C118A sparingly for text or pairing it with a very light or vibrant background to achieve a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Alternatively, this color could be used for decorative elements where legibility is not essential. When using it for interactive elements, ensure sufficient visual cues beyond color alone are present, such as underlines or icons, to aid users who may have color vision deficiencies. Thoughtful implementation is vital to avoid excluding users and ensure a more inclusive design.

Shades

Digital Color Formats

RGB
28 17 138
RGB28 17 138
Red
Green
Blue
HSL
245.45 78.06% 30.39%
245.4578.0630.39HSL
Hue
Saturation
Lightness
HWB
245.45 6.67% 45.88%
245.456.6745.88HWB
Hue
Whiteness
Blackness
hex#1C118A
rgb28 17 138
hsl245.45 78.06% 30.39%
cmyk79.71% 87.68% 0% 45.88%
hwb245.45 6.67% 45.88%
xyz5.27 2.48 24.25
CMYK
79.71% 87.68% 0% 45.88%
79.7187.68045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.27 2.48 24.25
5.272.4824.25XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025