Congress Blue

#0B3B8D

General Information about Congress Blue

The color #0B3B8D, also known as Congress Blue, is a dark shade of blue with a hex code of #0B3B8D. It is composed of 4.3% red, 23.1% green, and 55.3% blue. In the RGB color model, this translates to 11 red, 59 green, and 141 blue. In the CMYK color model, it is composed of 92% cyan, 58% magenta, 0% yellow, and 45% black. The hue angle is 217.8 degrees, the saturation is 88.4%, and the lightness is 29.8%. Congress Blue is often associated with professionalism, stability, and trust, making it a popular choice for corporate branding and government-related materials. Its depth and richness also lend it a sense of authority and sophistication.

The hex color #0B3B8D, also known as Congress Blue, presents some accessibility challenges, particularly regarding color contrast. When used as a background color, it requires very light text (white or near-white) to meet WCAG (Web Content Accessibility Guidelines) standards for sufficient contrast. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using darker shades of text on this background may render content illegible for users with visual impairments. When using this color for interactive elements like buttons or links, it is very important to ensure sufficient contrast in different states, for example hover and focus states. When using this color consider users with color blindness. For example, red-green color blind users may have difficulty distinguishing elements with this color if the color of the element differs only by redness or greenness. The color should not be used as the only visual means of conveying information.

Shades

Digital Color Formats

RGB
11 59 141
RGB11 59 141
Red
Green
Blue
HSL
217.85deg 85.53% 29.8%
217.8585.5329.8HSL
Hue
Saturation
Lightness
HWB
217.85deg 4.31% 44.71%
217.854.3144.71HWB
Hue
Whiteness
Blackness
hex#0B3B8D
rgb11 59 141
hsl217.85deg 85.53% 29.8%
cmyk92.2% 58.16% 0% 44.71%
hwb217.85deg 4.31% 44.71%
xyz-d650.07 0.05 0.26
oklch0.3779 0.1452 260.83
oklab0.3779 -0.02 -0.14
CMYK
92.2% 58.16% 0% 44.71%
92.258.16044.71CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.05 0.26
0.070.050.26XYZ
X
Y
Z
OKLCH
0.3779 0.1452 260.83
0.37790.1452260.83LCH
Lightness
Chroma
Hue
OKLAB
0.3779 -0.02 -0.14
0.3779-0.02-0.14LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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