Nile Blue

#183B4A

General Information about Nile Blue

The hex color #183B4A, also known as Nile Blue, is a dark, muted shade of blue with a subtle hint of green. It belongs to the family of cool colors and evokes feelings of calmness, serenity, and sophistication. In the RGB color model, it is composed of 9.41% red, 23.14% green, and 29.02% blue. In the CMYK color model, used in printing, it consists of 68% cyan, 20% magenta, 0% yellow, and 71% black. The name "Nile Blue" suggests a connection to the Nile River, possibly referencing the deep blue color of the river's waters. It is often associated with stability and trustworthiness.

The hex color #183B4A, also known as Nile Blue, presents certain accessibility challenges, particularly concerning color contrast. When used as a background color, it's crucial to select a foreground color with sufficient luminance contrast to ensure readability for individuals with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Lighter shades of yellows, oranges, or even pale greens could potentially meet these contrast requirements. Before deploying, it's essential to test the color combination with accessibility evaluation tools to guarantee compliance with accessibility standards and provide an inclusive user experience. Considering users with color blindness is also important, making contrast even more vital.

Shades

Digital Color Formats

RGB
24 59 74
RGB24 59 74
Red
Green
Blue
HSL
198deg 51.02% 19.22%
19851.0219.22HSL
Hue
Saturation
Lightness
HWB
198deg 9.41% 70.98%
1989.4170.98HWB
Hue
Whiteness
Blackness
hex#183B4A
rgb24 59 74
hsl198deg 51.02% 19.22%
cmyk67.57% 20.27% 0% 70.98%
hwb198deg 9.41% 70.98%
xyz-d650.03 0.04 0.07
oklch0.3336 0.0481 228.81
oklab0.3336 -0.03 -0.04
CMYK
67.57% 20.27% 0% 70.98%
67.5720.27070.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.04 0.07
0.030.040.07XYZ
X
Y
Z
OKLCH
0.3336 0.0481 228.81
0.33360.0481228.81LCH
Lightness
Chroma
Hue
OKLAB
0.3336 -0.03 -0.04
0.3336-0.03-0.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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