Congress Blue

#0A4F8E

General Information about Congress Blue

The hex color #0A4F8E, also known as Congress Blue, is a deep, muted shade of blue. It belongs to the blue color family and is often associated with feelings of stability, trust, and professionalism. In the RGB color model, it is composed of 3.92% red, 30.98% green, and 55.69% blue. The corresponding CMYK values are 93% cyan, 44% magenta, 0% yellow, and 44% black. This color has a relatively low saturation and brightness, giving it a subdued and sophisticated appearance. Congress Blue is often used in corporate branding and design to convey a sense of reliability and authority. Its calming nature also makes it suitable for environments where focus and concentration are required. The color is named Congress Blue due to its historical use in governmental and political contexts, symbolizing integrity and steadfastness.

The color #0A4F8E, also known as Congress Blue, presents some accessibility challenges, especially in text applications. Its relatively low lightness value (approximately 12%) means that it requires careful consideration of contrast ratios, particularly when used as a text color against a background. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text to ensure readability for users with visual impairments. When using Congress Blue for text, it is crucial to pair it with a very light background color like white (#FFFFFF) or a very light grey to meet these contrast requirements. Insufficient contrast can make text difficult or impossible to read for people with low vision or color blindness. Additionally, avoid using Congress Blue as a primary background color behind light-colored text unless the text is sufficiently bold and large. When employed in interactive elements such as buttons or links, ensure that sufficient visual cues, such as borders or changes in color on hover, are provided to make the interactive elements easily distinguishable for all users.

Shades

Digital Color Formats

RGB
10 79 142
RGB10 79 142
Red
Green
Blue
HSL
208.64deg 86.84% 29.8%
208.6486.8429.8HSL
Hue
Saturation
Lightness
HWB
208.64deg 3.92% 44.31%
208.643.9244.31HWB
Hue
Whiteness
Blackness
hex#0A4F8E
rgb10 79 142
hsl208.64deg 86.84% 29.8%
cmyk92.96% 44.37% 0% 44.31%
hwb208.64deg 3.92% 44.31%
xyz-d650.08 0.08 0.27
oklch0.4248 0.1216 252.27
oklab0.4248 -0.04 -0.12
CMYK
92.96% 44.37% 0% 44.31%
92.9644.37044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.08 0.27
0.080.080.27XYZ
X
Y
Z
OKLCH
0.4248 0.1216 252.27
0.42480.1216252.27LCH
Lightness
Chroma
Hue
OKLAB
0.4248 -0.04 -0.12
0.4248-0.04-0.12LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons