Ultramarine

#210FA4

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #210FA4, is a deep, rich blue with historical significance dating back to the Middle Ages. Originally derived from the precious gemstone lapis lazuli, Ultramarine was highly valued for its vibrant and lasting color. The name itself, "ultramarine," means "beyond the sea," reflecting the fact that the pigment had to be imported to Europe from mines in Asia. In modern times, synthetic versions of Ultramarine are widely available, making it more accessible for various applications. This color evokes feelings of trust, loyalty, and intelligence. It is often associated with corporate professionalism, intellectual pursuits, and artistic expression, finding common usage across technology, finance, and educational sectors. Its unique depth also brings an element of sophistication.

The color #210FA4, also known as Ultramarine, presents several accessibility considerations for web developers. Its dark hue results in a relatively low luminance value, which means sufficient contrast is crucial when pairing it with text or other foreground elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Therefore, Ultramarine should ideally be used with light colors such as white, light yellow or light gray to ensure readability and usability for individuals with visual impairments. It's also important to avoid using this color as the sole indicator of interactive elements, such as links, as colorblind users may not be able to differentiate them. Supplementing color cues with text labels or icons enhances accessibility. Careful attention to these factors will ensure a more inclusive and user-friendly web experience.

Shades

Digital Color Formats

RGB
33 15 164
RGB33 15 164
Red
Green
Blue
HSL
247.25 83.24% 35.1%
247.2583.2435.1HSL
Hue
Saturation
Lightness
HWB
247.25 5.88% 35.69%
247.255.8835.69HWB
Hue
Whiteness
Blackness
hex#210FA4
rgb33 15 164
hsl247.25 83.24% 35.1%
cmyk79.88% 90.85% 0% 35.69%
hwb247.25 5.88% 35.69%
xyz7.5 3.35 35.37
CMYK
79.88% 90.85% 0% 35.69%
79.8890.85035.69CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.5 3.35 35.37
7.53.3535.37XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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