Prussian Blue

#022D5B

About Prussian Blue

Prussian Blue, represented by the hex code #022D5B, is a dark shade of blue with historical significance. Discovered accidentally in the early 18th century, it was one of the first synthetically produced modern pigments. Known for its deep, rich color, Prussian Blue was quickly adopted by artists and dyers. Chemically, it's an iron hexacyanoferrate complex, resulting in its unique hue and properties. In color psychology, dark blues like Prussian Blue are often associated with trustworthiness, stability, and authority. These associations make it a popular choice for corporate branding and designs where conveying reliability and professionalism is important. Its use extends beyond art and design into various industrial applications, including dyes, inks, and even some medical treatments.

The hex color #022D5B, also known as Prussian Blue, presents some accessibility considerations for web developers. Given its dark nature, sufficient contrast is crucial when pairing it with text or other interactive elements. 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 #022D5B as a background, ensure that the foreground text color provides adequate contrast. Light shades of yellow, white, or light blue can work well. Tools like contrast checkers can help determine if the contrast ratio meets accessibility standards. Avoid pairing #022D5B with very dark colors, as this will likely result in poor readability and accessibility issues for users, especially those with visual impairments. Also, be mindful of colorblind users and ensure that color is not the only means of conveying information.

Shades

Digital Color Formats

RGB
2 45 91
RGB2 45 91
Red
Green
Blue
HSL
211.01deg 95.7% 18.24%
211.0195.718.24HSL
Hue
Saturation
Lightness
HWB
211.01deg 0.78% 64.31%
211.010.7864.31HWB
Hue
Whiteness
Blackness
hex#022D5B
rgb2 45 91
hsl211.01deg 95.7% 18.24%
cmyk97.8% 50.55% 0% 64.31%
hwb211.01deg 0.78% 64.31%
xyz-d650.03 0.03 0.1
oklch0.2996 0.0939 254.45
oklab0.2996 -0.03 -0.09
CMYK
97.8% 50.55% 0% 64.31%
97.850.55064.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.1
0.030.030.1XYZ
X
Y
Z
OKLCH
0.2996 0.0939 254.45
0.29960.0939254.45LCH
Lightness
Chroma
Hue
OKLAB
0.2996 -0.03 -0.09
0.2996-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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