Congress Blue

#0B3A8F

General Information about Congress Blue

Congress Blue, represented by the hexadecimal color code #0B3A8F, is a deep, rich shade of blue. It is often associated with concepts like authority, trust, and stability. In color psychology, blue is known to evoke feelings of calmness and security, making it a popular choice for corporate branding, government institutions, and financial services. The RGB values for Congress Blue are R: 11, G: 58, B: 143, indicating a relatively low presence of red and green, and a high presence of blue. This imbalance towards blue is what gives the color its characteristic deep hue. Because of the low red and green values, it is considered a cool color. In terms of the spectrum, Congress Blue sits towards the shorter wavelength end, close to indigo and violet. The name 'Congress Blue' suggests a connection with governmental or political contexts, further reinforcing its association with authority and trustworthiness.

The color #0B3A8F, also known as Congress Blue, presents some accessibility challenges, particularly concerning color contrast. When used as a background, it requires very light text (ideally white or near-white) to ensure sufficient contrast for readability. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text, as per WCAG guidelines. Tools like contrast checkers can help verify compliance. For users with low vision or color blindness, this contrast becomes even more crucial. Avoid pairing this dark blue with other dark or muted colors, as it will become illegible. Providing alternative styling options or themes can further enhance accessibility for a wider range of users. The perceived brightness of #0B3A8F is low, which is the main reason why light colors must be used in combination with it.

Shades

Digital Color Formats

RGB
11 58 143
RGB11 58 143
Red
Green
Blue
HSL
218.64deg 85.71% 30.2%
218.6485.7130.2HSL
Hue
Saturation
Lightness
HWB
218.64deg 4.31% 43.92%
218.644.3143.92HWB
Hue
Whiteness
Blackness
hex#0B3A8F
rgb11 58 143
hsl218.64deg 85.71% 30.2%
cmyk92.31% 59.44% 0% 43.92%
hwb218.64deg 4.31% 43.92%
xyz-d650.07 0.05 0.27
oklch0.3775 0.1493 261.36
oklab0.3775 -0.02 -0.15
CMYK
92.31% 59.44% 0% 43.92%
92.3159.44043.92CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.05 0.27
0.070.050.27XYZ
X
Y
Z
OKLCH
0.3775 0.1493 261.36
0.37750.1493261.36LCH
Lightness
Chroma
Hue
OKLAB
0.3775 -0.02 -0.15
0.3775-0.02-0.15LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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