Prussian Blue

#033057

General Information about Prussian Blue

Prussian Blue, represented by the hexadecimal color code #033057, is a deep, dark shade of blue with a slightly greenish undertone. It derives its name from the pigment first synthesized in the early 18th century, which became widely used in Prussian military uniforms. Chemically, it's a complex iron cyanide compound. In the RGB color model, #033057 consists of 1.18% red, 18.82% green, and 34.12% blue. The hue angle is 206.7 degrees, saturation is 93.44%, and the lightness is 17.65%. Its dark nature makes it appear serious and stable and it is often associated with depth, trust, and authority. In various applications, Prussian Blue exudes a sense of elegance and sophistication and also has historical significance linked to art and military history.

The hex color #033057, a deep shade of Prussian Blue, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value means it offers minimal contrast when used as text against a white or light-colored background. According to WCAG guidelines, sufficient contrast is crucial for readability. Therefore, when using this color for text, it's imperative to pair it with a very light color like #FFFFFF or #F0F0F0 to ensure a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Avoid using this color for crucial interactive elements, such as buttons or links, unless accompanied by clear visual cues and sufficient contrast. This can be enhanced through techniques such as adding borders or using complementary colors for hover states. Providing alternative color schemes or a user-adjustable contrast setting can significantly improve the accessibility of content using #033057.

Shades

Digital Color Formats

RGB
3 48 87
RGB3 48 87
Red
Green
Blue
HSL
207.86deg 93.33% 17.65%
207.8693.3317.65HSL
Hue
Saturation
Lightness
HWB
207.86deg 1.18% 65.88%
207.861.1865.88HWB
Hue
Whiteness
Blackness
hex#033057
rgb3 48 87
hsl207.86deg 93.33% 17.65%
cmyk96.55% 44.83% 0% 65.88%
hwb207.86deg 1.18% 65.88%
xyz-d650.03 0.03 0.09
oklch0.3046 0.0838 250.48
oklab0.3046 -0.03 -0.08
CMYK
96.55% 44.83% 0% 65.88%
96.5544.83065.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.09
0.030.030.09XYZ
X
Y
Z
OKLCH
0.3046 0.0838 250.48
0.30460.0838250.48LCH
Lightness
Chroma
Hue
OKLAB
0.3046 -0.03 -0.08
0.3046-0.03-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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