Prussian Blue

#02305C

General Information about Prussian Blue

Prussian Blue, represented by the hex code #02305C, is a deep and rich shade of blue with a subtle hint of green. Its name originates from its historical association with Prussian military uniforms and its use as a pigment. Chemically, it's a complex iron cyanide compound. In color theory, Prussian Blue is often categorized as a cool color, evoking feelings of calmness, stability, and sophistication. It's a versatile color used extensively in art, design, and fashion. Its depth allows it to function both as a background and an accent color, depending on the desired effect. Its association with royalty and the military lend to it an air of authority and respect. The color is also referred to as iron(III) hexacyanoferrate(II).

The hex color #02305C, also known as Prussian Blue, presents some accessibility challenges, particularly regarding contrast. When used as a background color, it necessitates very light text (white or near-white) to ensure sufficient contrast for readability, adhering to WCAG guidelines. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended. Tools like contrast checkers can accurately determine the ratio between text and background. Using this dark color for interactive elements requires careful consideration of hover and focus states, where a lighter shade or a contrasting border can enhance usability. Careful design and testing with users, especially those with visual impairments, will help optimize the accessibility of designs incorporating Prussian Blue. It's suitability as an option depends on the use-case, and requires additional focus on the contrast.

Shades

Digital Color Formats

RGB
2 48 92
RGB2 48 92
Red
Green
Blue
HSL
209.33deg 95.74% 18.43%
209.3395.7418.43HSL
Hue
Saturation
Lightness
HWB
209.33deg 0.78% 63.92%
209.330.7863.92HWB
Hue
Whiteness
Blackness
hex#02305C
rgb2 48 92
hsl209.33deg 95.74% 18.43%
cmyk97.83% 47.83% 0% 63.92%
hwb209.33deg 0.78% 63.92%
xyz-d650.03 0.03 0.11
oklch0.3082 0.0914 252.62
oklab0.3082 -0.03 -0.09
CMYK
97.83% 47.83% 0% 63.92%
97.8347.83063.92CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.11
0.030.030.11XYZ
X
Y
Z
OKLCH
0.3082 0.0914 252.62
0.30820.0914252.62LCH
Lightness
Chroma
Hue
OKLAB
0.3082 -0.03 -0.09
0.3082-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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