Congress Blue

#0F3B8C

General Information about Congress Blue

The hex color #0F3B8C, also known as Congress Blue, is a deep, saturated blue hue with a strong presence. It belongs to the blue color family and evokes feelings of trust, stability, and authority. In the RGB color model, it is composed of 5.9% red, 23.1% green, and 54.9% blue. This specific combination results in a color that is often associated with professionalism and reliability. Congress Blue is a popular choice for branding and design projects where conveying a sense of seriousness and dependability is crucial. Its rich tone makes it versatile for both digital and print applications. Because it is such a strong hue, it is often paired with more neutral colors such as white, grey and tan to tone down the blue's intensity.

The hex color #0F3B8C, also known as Congress Blue, presents certain accessibility challenges, particularly concerning color contrast. When used as a background color, it requires very light text to ensure sufficient contrast for readability, ideally achieving a contrast ratio of at least 4.5:1 as recommended by WCAG guidelines. Conversely, when used for text, a light background is essential. Using this color for essential interactive elements such as links or buttons requires careful consideration; providing additional cues like underlines or icons can significantly improve usability for users with visual impairments. Proper testing with accessibility evaluation tools and involving users with disabilities in the design process is crucial to ensure that content using this color is accessible to everyone.

Shades

Digital Color Formats

RGB
15 59 140
RGB15 59 140
Red
Green
Blue
HSL
218.88deg 80.65% 30.39%
218.8880.6530.39HSL
Hue
Saturation
Lightness
HWB
218.88deg 5.88% 45.1%
218.885.8845.1HWB
Hue
Whiteness
Blackness
hex#0F3B8C
rgb15 59 140
hsl218.88deg 80.65% 30.39%
cmyk89.29% 57.86% 0% 45.1%
hwb218.88deg 5.88% 45.1%
xyz-d650.06 0.05 0.25
oklch0.3779 0.1431 261.41
oklab0.3779 -0.02 -0.14
CMYK
89.29% 57.86% 0% 45.1%
89.2957.86045.1CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.05 0.25
0.060.050.25XYZ
X
Y
Z
OKLCH
0.3779 0.1431 261.41
0.37790.1431261.41LCH
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

Buttons