Nile Blue

#183A4D

General Information about #183A4D

The hex color #183A4D, also known as Nile Blue, is a dark, muted shade of blue. It is composed of 9.4% red, 22.7% green, and 30.2% blue. In the RGB color space, this translates to R:24, G:58, B:77. The CMYK representation is C:69, M:25, Y:0, K:69. Its hue is 203.6 degrees, with a saturation of 52.3%, and a lightness of 19.8%. This color evokes feelings of calmness, stability, and sophistication. Nile Blue's subdued nature makes it a versatile choice for various design applications. It is not a very bright color, which makes it suitable for use as a background color, especially in web design where excessive brightness can cause eye strain. Its desaturated nature also makes it easy to combine with brighter accent colors. The nearest websafe color is #003366.

The color #183A4D, a dark, desaturated blue, presents some accessibility challenges, especially when used for text. Its low lightness value (approximately 22%) means it requires careful consideration of contrast ratios to ensure readability. When used as text on a white background, it may not meet the WCAG (Web Content Accessibility Guidelines) AA standards for normal text (4.5:1 contrast ratio). However, it might be acceptable for large text elements. Conversely, using #183A4D as a background color necessitates light-colored text for sufficient contrast. Tools like WebAIM's Contrast Checker can be invaluable in assessing the contrast ratio between #183A4D and other colors to guarantee accessibility compliance. Employing it strategically, such as for decorative elements or non-essential information, can minimize accessibility concerns. Always prioritize user experience by ensuring that all essential text and interactive elements meet the necessary contrast requirements for users with visual impairments.

Shades

Digital Color Formats

RGB
24 58 77
RGB24 58 77
Red
Green
Blue
HSL
201.51deg 52.48% 19.8%
201.5152.4819.8HSL
Hue
Saturation
Lightness
HWB
201.51deg 9.41% 69.8%
201.519.4169.8HWB
Hue
Whiteness
Blackness
hex#183A4D
rgb24 58 77
hsl201.51deg 52.48% 19.8%
cmyk68.83% 24.68% 0% 69.8%
hwb201.51deg 9.41% 69.8%
xyz-d650.03 0.04 0.08
oklch0.3325 0.0518 235.79
oklab0.3325 -0.03 -0.04
CMYK
68.83% 24.68% 0% 69.8%
68.8324.68069.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.04 0.08
0.030.040.08XYZ
X
Y
Z
OKLCH
0.3325 0.0518 235.79
0.33250.0518235.79LCH
Lightness
Chroma
Hue
OKLAB
0.3325 -0.03 -0.04
0.3325-0.03-0.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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