Congress Blue

#0F4B8B

General Information about Congress Blue

The hex color #0F4B8B, commonly referred to as Congress Blue, is a deep, saturated shade of blue that evokes feelings of trust, stability, and authority. It falls within the blue color family and has a relatively low luminance value. In the RGB color model, it is composed of 15 red, 75 green, and 139 blue. In the CMYK color model, used for printing, it consists of approximately 89% cyan, 46% magenta, 0% yellow, and 45% black. This color is often associated with institutions, government, and corporate settings due to its serious and dependable nature. In color psychology, blue is often linked to calmness, intelligence, and efficiency, making #0F4B8B a popular choice for branding and design elements where these qualities are desired.

The hex color #0f4b8b, also known as Congress Blue, presents some accessibility challenges. Its relatively low luminance can cause issues with text legibility, especially when used as a background color with light text. According to WCAG guidelines, sufficient contrast between text and background is crucial for users with visual impairments. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #0f4b8b, it is important to carefully select foreground colors that provide adequate contrast. White or very light shades of yellow or green may work, but it's always best to test the color combination with accessibility evaluation tools. Additionally, avoid using this color for crucial visual elements like buttons or links without proper contrast, as this can hinder usability for a wide range of users, including those with color blindness.

Shades

Digital Color Formats

RGB
15 75 139
RGB15 75 139
Red
Green
Blue
HSL
210.97deg 80.52% 30.2%
210.9780.5230.2HSL
Hue
Saturation
Lightness
HWB
210.97deg 5.88% 45.49%
210.975.8845.49HWB
Hue
Whiteness
Blackness
hex#0F4B8B
rgb15 75 139
hsl210.97deg 80.52% 30.2%
cmyk89.21% 46.04% 0% 45.49%
hwb210.97deg 5.88% 45.49%
xyz-d650.07 0.07 0.25
oklch0.4138 0.1214 254.31
oklab0.4138 -0.03 -0.12
CMYK
89.21% 46.04% 0% 45.49%
89.2146.04045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.25
0.070.070.25XYZ
X
Y
Z
OKLCH
0.4138 0.1214 254.31
0.41380.1214254.31LCH
Lightness
Chroma
Hue
OKLAB
0.4138 -0.03 -0.12
0.4138-0.03-0.12LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons