Congress Blue

#0A3B8A

General Information

The color #0A3B8A, also known as Congress Blue, is a dark, muted shade of blue that exudes a sense of stability, trust, and authority. It is often associated with governmental institutions, hence the name 'Congress Blue.' In the RGB color model, it consists of 3.92% red, 23.14% green, and 54.12% blue. Its CMYK values are 93% cyan, 57% magenta, 0% yellow, and 46% black. This hex color is perceived as a cool and calming color, making it suitable for various applications where a sense of reliability and professionalism is desired. Its depth and richness make it a versatile color that can be used both as a primary and secondary color in different design contexts. It has a wavelength of approximately 474 nm.

The hex color #0A3B8A, also known as Congress Blue, presents some accessibility challenges, particularly concerning color contrast. When used as a background color, it's crucial to ensure that any text or interactive elements layered on top have sufficient contrast to be easily readable by individuals with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text. When using Congress Blue, lighter colors like white, light yellows, or pale greens could provide acceptable contrast. Tools such as WebAIM's contrast checker can be used to verify compliance. Furthermore, avoid using this color as the sole means of conveying information, as colorblind users may not perceive it accurately. Always provide supplementary cues, such as text labels or icons, to ensure inclusivity.

Shades

Digital Color Formats

RGB
10 59 138
RGB10 59 138
Red
Green
Blue
HSL
217.03deg 86.49% 29.02%
217.0386.4929.02HSL
Hue
Saturation
Lightness
HWB
217.03deg 3.92% 45.88%
217.033.9245.88HWB
Hue
Whiteness
Blackness
hex#0A3B8A
rgb10 59 138
hsl217.03deg 86.49% 29.02%
cmyk92.75% 57.25% 0% 45.88%
hwb217.03deg 3.92% 45.88%
xyz-d650.06 0.05 0.25
oklch0.375 0.1412 260.29
oklab0.375 -0.02 -0.14
CMYK
92.75% 57.25% 0% 45.88%
92.7557.25045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.05 0.25
0.060.050.25XYZ
X
Y
Z
OKLCH
0.375 0.1412 260.29
0.3750.1412260.29LCH
Lightness
Chroma
Hue
OKLAB
0.375 -0.02 -0.14
0.375-0.02-0.14LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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