Ultramarine

#00129B

General Information about Ultramarine

The hex color #00129b, also known as Ultramarine, is a deep and intense shade of blue. In the RGB color model, it is composed of 0% red, 7.1% green, and 60.8% blue. This composition gives it a strong and commanding presence. Ultramarine derives its name from the Latin 'ultramarinus,' meaning 'beyond the sea,' as it was originally made from lapis lazuli imported from faraway lands. Historically, it was a highly prized pigment used in Renaissance paintings, often reserved for depicting the robes of the Virgin Mary due to its rarity and cost. Today, synthetic ultramarine is widely available, making it an accessible and versatile color for various applications in design, art, and technology. Its rich and captivating nature makes it suitable for creating depth, drama, and a sense of sophistication.

The hex color #00129b, a deep shade of blue also known as Ultramarine, presents significant accessibility challenges, particularly for text and interactive elements. Its very low luminance value means that it requires extremely light foreground colors to achieve sufficient contrast ratios as defined by WCAG guidelines. Using white text on this background generally meets the minimum contrast ratio for normal text (4.5:1), but may not meet the enhanced contrast ratio (7:1) recommended for users with low vision or other visual impairments. Therefore, it's crucial to meticulously test color combinations using accessibility evaluation tools. When employing #00129b, avoid pairing it with mid-tone colors, and ensure interactive elements have clear visual cues beyond color alone to aid users with color vision deficiencies. Consider providing alternative high-contrast themes to accommodate users with diverse visual needs, ensuring an inclusive digital experience.

Shades

Digital Color Formats

RGB
0 18 155
RGB0 18 155
Red
Green
Blue
HSL
233.03 100% 30.39%
233.0310030.39HSL
Hue
Saturation
Lightness
HWB
233.03 0% 39.22%
233.03039.22HWB
Hue
Whiteness
Blackness
hex#00129B
rgb0 18 155
hsl233.03 100% 30.39%
cmyk100% 88.39% 0% 39.22%
hwb233.03 0% 39.22%
xyz6.13 2.8 31.23
CMYK
100% 88.39% 0% 39.22%
10088.39039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ
6.13 2.8 31.23
6.132.831.23XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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