Ultramarine

#170197

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #170197, is a deep, rich blue pigment originally derived from the precious gemstone lapis lazuli. Its name literally means "beyond the sea," reflecting its origin as a pigment imported from overseas. In the realm of color theory, ultramarine is situated within the blue color family, known for its association with tranquility, depth, and stability. Historically, it was highly valued by Renaissance painters for its vibrancy and permanence. Chemically, synthetic ultramarine is a complex sodium aluminosilicate containing sulfur, which gives it its characteristic blue hue. This synthetic version, developed in the 19th century, made the color more accessible and affordable. The color is used across various mediums, from art to industrial applications.

The color #170197, a deep ultramarine, presents significant accessibility challenges, especially when used as text against a white or light-colored background. Its low luminance value means it provides insufficient contrast, making it difficult for users with visual impairments to read. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. This color likely falls short of these requirements in many scenarios. To improve accessibility, consider pairing it with a much lighter color for text or interface elements. Alternatively, use it sparingly for decorative elements where readability isn't critical. Tools like contrast checkers can help determine if a specific color combination meets accessibility standards. Thoughtful color choices can significantly enhance the user experience for everyone.

Shades

Digital Color Formats

RGB
23 1 151
RGB23 1 151
Red
Green
Blue
HSL
248.8deg 98.68% 29.8%
248.898.6829.8HSL
Hue
Saturation
Lightness
HWB
248.8deg 0.39% 40.78%
248.80.3940.78HWB
Hue
Whiteness
Blackness
hex#170197
rgb23 1 151
hsl248.8deg 98.68% 29.8%
cmyk84.77% 99.34% 0% 40.78%
hwb248.8deg 0.39% 40.78%
xyz-d650.06 0.02 0.29
oklch0.3146 0.206 269.67
oklab0.3146 0 -0.21
CMYK
84.77% 99.34% 0% 40.78%
84.7799.34040.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.02 0.29
0.060.020.29XYZ
X
Y
Z
OKLCH
0.3146 0.206 269.67
0.31460.206269.67LCH
Lightness
Chroma
Hue
OKLAB
0.3146 0 -0.21
0.31460-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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