Ultramarine

#2303B1

General Information about Ultramarine

Ultramarine, represented by the hex code #2303B1, is a deep, vivid blue color with a rich history. It was originally derived from the semi-precious stone lapis lazuli, making it one of the most expensive and prized pigments for centuries. In art, Ultramarine was favored by Renaissance painters for its brilliance and permanence. Today, synthetic versions offer a more affordable alternative, but the name continues to evoke a sense of luxury and artistic heritage. In color psychology, Ultramarine is associated with royalty, wisdom, and spirituality. It is often used to convey a sense of trust and stability, making it a popular choice for corporate branding and website design. Its depth and intensity can also evoke feelings of creativity and inspiration.

The hex color #2303b1, also known as Ultramarine, presents some accessibility challenges, especially in web design. Its dark hue means that using it as a background color requires careful consideration of text color choices to ensure sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using Ultramarine as a background, pairing it with white or very light shades of yellow or green can improve readability. Conversely, using it for text on a white background can also pose challenges, potentially straining the eyes if used extensively. Careful use of font weight and size can mitigate these issues. It is crucial to test color combinations using accessibility tools to verify compliance with accessibility standards and ensure that content is accessible to users with visual impairments.

Shades

Digital Color Formats

RGB
35 3 177
RGB35 3 177
Red
Green
Blue
HSL
251.03 96.67% 35.29%
251.0396.6735.29HSL
Hue
Saturation
Lightness
HWB
251.03 1.18% 30.59%
251.031.1830.59HWB
Hue
Whiteness
Blackness
hex#2303B1
rgb35 3 177
hsl251.03 96.67% 35.29%
cmyk80.23% 98.31% 0% 30.59%
hwb251.03 1.18% 30.59%
xyz8.66 3.6 41.83
CMYK
80.23% 98.31% 0% 30.59%
80.2398.31030.59CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.66 3.6 41.83
8.663.641.83XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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