Congress Blue

#0A3C91

General Information

Congress Blue, represented by the hexadecimal color code #0A3C91, is a dark and somewhat muted shade of blue. It evokes feelings of depth, stability, and trustworthiness. In the RGB color model, it consists of 3.92% red, 23.53% green, and 56.86% blue. In the CMYK color model, which is used in printing, its composition is 93% cyan, 59% magenta, 0% yellow, and 43% black. This color is often associated with authority, intelligence, and formality. It finds common use in corporate branding, government websites, and academic institutions. Understanding its color composition allows designers to effectively incorporate it into various projects, ensuring it aligns with the desired mood and message. Its relatively low brightness value of 20% necessitates careful consideration of contrast when used with text or other visual elements.

The hex color #0A3C91, also known as Congress Blue, presents some accessibility challenges, particularly regarding color contrast. When used as a foreground color for text, it requires careful consideration of the background color to ensure sufficient contrast for readability. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text to meet AA compliance. For AAA compliance, these ratios increase to 7:1 and 4.5:1, respectively. Using #0A3C91 on a white background may not meet these standards, making it difficult for users with visual impairments to read the content. To improve accessibility, consider pairing it with a much lighter color, such as a light yellow or off-white, or using it sparingly for decorative elements rather than critical text. Testing with accessibility tools is crucial to verify compliance.

Shades

Digital Color Formats

RGB
10 60 145
RGB10 60 145
Red
Green
Blue
HSL
217.78deg 87.1% 30.39%
217.7887.130.39HSL
Hue
Saturation
Lightness
HWB
217.78deg 3.92% 43.14%
217.783.9243.14HWB
Hue
Whiteness
Blackness
hex#0A3C91
rgb10 60 145
hsl217.78deg 87.1% 30.39%
cmyk93.1% 58.62% 0% 43.14%
hwb217.78deg 3.92% 43.14%
xyz-d650.07 0.05 0.27
oklch0.3835 0.1496 260.86
oklab0.3835 -0.02 -0.15
CMYK
93.1% 58.62% 0% 43.14%
93.158.62043.14CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.05 0.27
0.070.050.27XYZ
X
Y
Z
OKLCH
0.3835 0.1496 260.86
0.38350.1496260.86LCH
Lightness
Chroma
Hue
OKLAB
0.3835 -0.02 -0.15
0.3835-0.02-0.15LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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