Ultramarine

#0A09AB

General Information about Ultramarine

Ultramarine, represented by the hex code #0a09ab, is a deep, vivid shade of blue with a rich history. Its name originates from the Latin "ultramarinus," meaning "beyond the sea," as it was originally derived from the precious gemstone lapis lazuli, imported from faraway lands, primarily Afghanistan. During the Middle Ages and Renaissance, Ultramarine was highly prized by artists and was even more expensive than gold. It was used to depict the robes of the Virgin Mary and other important figures, symbolizing holiness and prestige. Synthetic Ultramarine was developed in the 19th century, making the pigment more accessible and affordable. Today, it is still valued for its intense color and is used in a wide range of applications, from paints and pigments to plastics and cosmetics.

The hex color #0a09ab, also known as Ultramarine, presents certain accessibility challenges, especially concerning text and background contrast. When using this dark shade of blue as a background, it is crucial to pair it with light-colored text (e.g., white, light yellow, or very pale shades of gray) to ensure sufficient contrast for readability. Conversely, if Ultramarine is used for text, a light or neutral background is necessary. Tools such as accessibility checkers (available in many design and development platforms) can assess contrast ratios to ensure compliance with WCAG (Web Content Accessibility Guidelines) standards. Aim for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Thoughtful color selection is paramount for an inclusive user experience.

Shades

Digital Color Formats

RGB
10 9 171
RGB10 9 171
Red
Green
Blue
HSL
240.37 90% 35.29%
240.379035.29HSL
Hue
Saturation
Lightness
HWB
240.37 3.53% 32.94%
240.373.5332.94HWB
Hue
Whiteness
Blackness
hex#0A09AB
rgb10 9 171
hsl240.37 90% 35.29%
cmyk94.15% 94.74% 0% 32.94%
hwb240.37 3.53% 32.94%
xyz7.57 3.2 38.75
CMYK
94.15% 94.74% 0% 32.94%
94.1594.74032.94CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.57 3.2 38.75
7.573.238.75XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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