Prussian Blue

#043559

General Information about Prussian Blue

Prussian Blue, represented by the hexadecimal color code #043559, is a deep, rich shade of blue. It is known for its historical significance, as it was one of the first synthetically produced pigments. Discovered accidentally in the early 18th century, it quickly became a popular color for artists and dyers due to its stability and affordability. Prussian Blue is a complex inorganic compound, a ferric ferrocyanide. This pigment exhibits a strong tinting strength and is relatively lightfast, making it suitable for various applications. The color evokes feelings of depth, stability, and sophistication, often associated with authority and intelligence. In color psychology, darker blues are often linked to trust, loyalty, and calmness.

The color #043559, a deep Prussian Blue, presents some accessibility challenges, particularly concerning color contrast. When used as a background color, it requires very light text (ideally white or near-white) to ensure sufficient contrast for readability, meeting WCAG (Web Content Accessibility Guidelines) standards for users with visual impairments. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Careful consideration is needed when pairing this color with other elements, such as icons or buttons, to ensure they are distinguishable and usable. Tools like contrast checkers can help determine if color combinations provide adequate contrast. Using a lighter shade of blue or a completely different brighter color could improve accessibility in some designs. Also consider providing alternative visual cues besides color, such as text labels or patterns, for users who are colorblind.

Shades

Digital Color Formats

RGB
4 53 89
RGB4 53 89
Red
Green
Blue
HSL
205.41deg 91.4% 18.24%
205.4191.418.24HSL
Hue
Saturation
Lightness
HWB
205.41deg 1.57% 65.1%
205.411.5765.1HWB
Hue
Whiteness
Blackness
hex#043559
rgb4 53 89
hsl205.41deg 91.4% 18.24%
cmyk95.51% 40.45% 0% 65.1%
hwb205.41deg 1.57% 65.1%
xyz-d650.03 0.03 0.1
oklch0.3198 0.0804 247.03
oklab0.3198 -0.03 -0.07
CMYK
95.51% 40.45% 0% 65.1%
95.5140.45065.1CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.1
0.030.030.1XYZ
X
Y
Z
OKLCH
0.3198 0.0804 247.03
0.31980.0804247.03LCH
Lightness
Chroma
Hue
OKLAB
0.3198 -0.03 -0.07
0.3198-0.03-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons