Ultramarine

#1F009B

About Ultramarine (#1F009B)

The hex color #1F009B is known as Ultramarine, a deep blue color often associated with royalty and sophistication. In the RGB color model, it consists of 12.2% red, 0% green, and 61.2% blue. Ultramarine's prominence in art history stems from the costly pigment derived from lapis lazuli, making it highly valued. Today, synthetic versions allow for broader use across various media. In design, Ultramarine can evoke feelings of calmness, trust, and authority. It is used across various design fields like web design, graphic design, fashion, and interiors. However, caution is advised because overuse of #1F009B can appear overwhelming.

The color #1F009B, a deep Ultramarine, presents several accessibility considerations for web developers. Its low luminance value means that it requires careful attention to color contrast. When used as a background, it necessitates light-colored text (white or very light grays) to ensure sufficient contrast ratio, ideally meeting WCAG AA or AAA standards. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended. Avoid pairing this color with other dark shades as this could lead to illegible text. When used for interactive elements such as buttons or links, hover and focus states need to be clearly defined with a contrasting color change to ensure usability for all users, including those with visual impairments. Thoughtful consideration of font sizes and weights can also improve readability against this dark background.

Shades

Digital Color Formats

RGB
31 0 155
RGB31 0 155
Red
Green
Blue
HSL
252 100% 30.39%
25210030.39HSL
Hue
Saturation
Lightness
HWB
252 0% 39.22%
252039.22HWB
Hue
Whiteness
Blackness
hex#1F009B
rgb31 0 155
hsl252 100% 30.39%
cmyk80% 100% 0% 39.22%
hwb252 0% 39.22%
xyz6.48 2.66 31.18
CMYK
80% 100% 0% 39.22%
80100039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ
6.48 2.66 31.18
6.482.6631.18XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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