Prussian Blue

#022E5B

General Information about Prussian Blue

Prussian Blue, represented by the hex code #022E5B, is a deep, dark shade of blue with historical significance. It was one of the first synthetically produced pigments, discovered accidentally in the early 18th century. Chemically, it's a complex iron cyanide compound. The color is known for its rich, intense hue and its relative lightfastness, making it valuable in various applications. In art, Prussian Blue has been used extensively in paintings and printmaking, often as a substitute for more expensive ultramarine. It's also found applications in dyeing textiles and creating blueprints. Its depth and saturation lend a sense of seriousness and sophistication to designs. The color's name derives from its use in Prussian military uniforms, reflecting its association with authority and formality. It continues to be a popular color choice in design and branding today, valued for its classic and elegant appeal.

The hex color #022E5B, a deep prussian blue, presents significant accessibility challenges. Its low lightness value (approximately 6%) means it offers very little contrast against similarly dark backgrounds. For text to be legible and meet WCAG (Web Content Accessibility Guidelines) standards, it requires a very light text color. A contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text. Using this color for text on a white background would fail miserably. Similarly, using it as a background color with dark text would be equally problematic. Careful consideration is needed to ensure sufficient contrast. Testing with accessibility tools is crucial to validate color combinations and ensure they meet the needs of users with visual impairments. Consider using a lighter shade as an alternative for backgrounds, or reserving it for decorative elements where legibility is not paramount. Always prioritize users' ability to perceive and understand content.

Shades

Digital Color Formats

RGB
2 46 91
RGB2 46 91
Red
Green
Blue
HSL
210.34deg 95.7% 18.24%
210.3495.718.24HSL
Hue
Saturation
Lightness
HWB
210.34deg 0.78% 64.31%
210.340.7864.31HWB
Hue
Whiteness
Blackness
hex#022E5B
rgb2 46 91
hsl210.34deg 95.7% 18.24%
cmyk97.8% 49.45% 0% 64.31%
hwb210.34deg 0.78% 64.31%
xyz-d650.03 0.03 0.1
oklch0.3022 0.0926 253.72
oklab0.3022 -0.03 -0.09
CMYK
97.8% 49.45% 0% 64.31%
97.849.45064.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.1
0.030.030.1XYZ
X
Y
Z
OKLCH
0.3022 0.0926 253.72
0.30220.0926253.72LCH
Lightness
Chroma
Hue
OKLAB
0.3022 -0.03 -0.09
0.3022-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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