Ultramarine

#05009B

General Information about Ultramarine

Ultramarine, represented by the hex code #05009B, is a deep and rich shade of blue. It is characterized by its high saturation and relatively low lightness, giving it a strong and intense appearance. Historically, ultramarine was derived from the precious gemstone lapis lazuli, making it a highly valued pigment used in Renaissance paintings and other artistic endeavors. Today, synthetic ultramarine is readily available, offering the same vibrant hue at a more accessible price point. In color theory, ultramarine is considered a cool color, evoking feelings of calmness, serenity, and intellect. Its association with the sea and sky contributes to its sense of expansiveness and depth.

The hex color #05009b, also known as Ultramarine, presents significant accessibility challenges, particularly for users with visual impairments. Its very dark hue results in a low contrast ratio against lighter backgrounds, which is crucial for readability. Web Content Accessibility Guidelines (WCAG) emphasize the importance of sufficient contrast to ensure content is perceivable. To meet accessibility standards, using #05009b for text or interactive elements requires careful consideration of the background color. A very light background is essential, and even then, the contrast should be tested using accessibility tools to confirm compliance with WCAG guidelines. Avoid pairing this color with mid-tone or dark backgrounds, as it will render the text or elements illegible for many users. Consider using this color primarily for decorative purposes where accessibility is less critical or use it in combination with high contrast elements.

Shades

Digital Color Formats

RGB
5 0 155
RGB5 0 155
Red
Green
Blue
HSL
241.94 100% 30.39%
241.9410030.39HSL
Hue
Saturation
Lightness
HWB
241.94 0% 39.22%
241.94039.22HWB
Hue
Whiteness
Blackness
hex#05009B
rgb5 0 155
hsl241.94 100% 30.39%
cmyk96.77% 100% 0% 39.22%
hwb241.94 0% 39.22%
xyz5.98 2.4 31.16
CMYK
96.77% 100% 0% 39.22%
96.77100039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.98 2.4 31.16
5.982.431.16XYZ
X
Y
Z

Alternative colors

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