Prussian Blue

#03345A

About Prussian Blue

Prussian Blue, represented by the hex code #03345A, is a deep shade of blue with a rich history. Originally a pigment produced by heating potassium ferrocyanide with iron salts, it became widely used in paints, dyes, and printing inks. Its name reflects its historical association with Prussia. In color theory, Prussian Blue is considered a cool color, often associated with feelings of calmness, stability, and authority. Its low saturation and dark value contribute to its sophisticated and understated appearance. It is also a color that provides a feeling of trustworthiness. It is a popular choice in various design applications because of its classic appeal and versatility.

The hex color #03345A, also known as Prussian Blue, presents specific accessibility considerations for web design. Its dark hue results in a low luminance value, meaning it requires careful pairing with contrasting colors to ensure readability. According to WCAG guidelines, sufficient contrast between text and background is crucial for users with visual impairments. When using #03345A as a background color, light text colors such as white (#FFFFFF) or light yellows are highly recommended. Avoid pairing it with other dark colors as this could render text illegible. Tools like contrast checkers can help to accurately determine if color combinations meet accessibility standards. Using it for decorative elements alone poses less risk, but thoughtful consideration remains important in interactive elements like buttons and links, ensuring they provide clear visual cues and meet minimum contrast ratios.

Shades

Digital Color Formats

RGB
3 52 90
RGB3 52 90
Red
Green
Blue
HSL
206.21deg 93.55% 18.24%
206.2193.5518.24HSL
Hue
Saturation
Lightness
HWB
206.21deg 1.18% 64.71%
206.211.1864.71HWB
Hue
Whiteness
Blackness
hex#03345A
rgb3 52 90
hsl206.21deg 93.55% 18.24%
cmyk96.67% 42.22% 0% 64.71%
hwb206.21deg 1.18% 64.71%
xyz-d650.03 0.03 0.1
oklch0.3175 0.0832 248.37
oklab0.3175 -0.03 -0.08
CMYK
96.67% 42.22% 0% 64.71%
96.6742.22064.71CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.1
0.030.030.1XYZ
X
Y
Z
OKLCH
0.3175 0.0832 248.37
0.31750.0832248.37LCH
Lightness
Chroma
Hue
OKLAB
0.3175 -0.03 -0.08
0.3175-0.03-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons