Prussian Blue

#033558

About Prussian Blue

Prussian Blue, chemically known as ferric ferrocyanide, is a deep, rich blue pigment with a fascinating history. Discovered accidentally in the early 18th century, it quickly became a popular alternative to more expensive blue pigments like ultramarine. Its intense color and relative ease of production made it a favorite among artists, textile manufacturers, and dyers. The color is characterized by its dark, slightly greenish hue. In digital color representation, the hex code #033558 defines a specific shade of Prussian Blue, with very little red, a moderate amount of green and a larger amount of blue. Its robustness has led to its use in blueprints and even as a treatment for certain types of heavy metal poisoning. Today, Prussian Blue continues to be valued for its unique aesthetic and versatile applications.

The hex color #033558, a deep shade of Prussian Blue, presents significant accessibility considerations, particularly in web design. Its low luminance value necessitates careful selection of foreground colors to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using #033558 as a background, pairing it with white or light-colored text is crucial to meet these standards. Tools like contrast checkers can help verify compliance. Furthermore, avoid relying solely on color to convey information, as individuals with color vision deficiencies may struggle to differentiate it from similar hues. Providing supplementary cues, such as text labels or icons, can improve accessibility for all users. Thoughtful application of this color can enhance visual appeal without compromising usability.

Shades

Digital Color Formats

RGB
3 53 88
RGB3 53 88
Red
Green
Blue
HSL
204.71deg 93.41% 17.84%
204.7193.4117.84HSL
Hue
Saturation
Lightness
HWB
204.71deg 1.18% 65.49%
204.711.1865.49HWB
Hue
Whiteness
Blackness
hex#033558
rgb3 53 88
hsl204.71deg 93.41% 17.84%
cmyk96.59% 39.77% 0% 65.49%
hwb204.71deg 1.18% 65.49%
xyz-d650.03 0.03 0.1
oklch0.3188 0.0793 246.05
oklab0.3188 -0.03 -0.07
CMYK
96.59% 39.77% 0% 65.49%
96.5939.77065.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.1
0.030.030.1XYZ
X
Y
Z
OKLCH
0.3188 0.0793 246.05
0.31880.0793246.05LCH
Lightness
Chroma
Hue
OKLAB
0.3188 -0.03 -0.07
0.3188-0.03-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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