Ultramarine

#0A0F91

About Ultramarine

Ultramarine, represented by the hexadecimal color code #0A0F91, is a deep and rich shade of blue. It is named after the pigment derived from lapis lazuli, a semi-precious stone, historically valued for its intense color. In the RGB color model, #0A0F91 consists of 3.92% red, 5.88% green, and 56.86% blue. This color evokes feelings of tranquility, depth, and sophistication. Its association with royalty and spirituality throughout history contributes to its timeless appeal. Ultramarine is frequently used in art, design, and fashion to convey a sense of elegance and authority. Its properties make it suitable for various applications where a strong and impactful visual statement is desired.

The color #0A0F91, a deep shade of Ultramarine, presents specific accessibility considerations for web development. Its low luminance value necessitates careful selection of foreground colors to ensure sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. White or very light shades of yellow or green are suitable choices when using #0A0F91 as a background. Conversely, using it for text on a white background would fail accessibility standards. Designers should evaluate the context and user needs, potentially using color contrast tools, to guarantee readability and usability, particularly for users with visual impairments. Thoughtful application is crucial to prevent visual fatigue and ensure inclusive access to content.

Shades

Digital Color Formats

RGB
10 15 145
RGB10 15 145
Red
Green
Blue
HSL
237.78 87.1% 30.39%
237.7887.130.39HSL
Hue
Saturation
Lightness
HWB
237.78 3.92% 43.14%
237.783.9243.14HWB
Hue
Whiteness
Blackness
hex#0A0F91
rgb10 15 145
hsl237.78 87.1% 30.39%
cmyk93.1% 89.66% 0% 43.14%
hwb237.78 3.92% 43.14%
xyz5.41 2.45 26.98
CMYK
93.1% 89.66% 0% 43.14%
93.189.66043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.41 2.45 26.98
5.412.4526.98XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025