Nile Blue

#153A52

General Information about Nile Blue

The color #153A52, also known as Nile Blue, is a dark, muted shade of blue often associated with calmness, stability, and depth. In the RGB color model, it consists of 8.24% red, 22.75% green, and 32.16% blue. It is a color that evokes feelings of serenity and professionalism, making it a popular choice in various design applications. The color can be used to create a sense of trust and reliability, which is why it is often seen in corporate branding and website designs. Historically, the term Nile Blue comes from a dye. The dark undertones of this color make it suitable for backgrounds and accents, providing a sophisticated and understated look. Its versatility allows it to be paired with both light and dark shades to achieve various aesthetic effects, making it a valuable color in any designer's palette. It is also a popular choice for educational institutions.

The color #153A52, also known as Nile Blue, presents some accessibility challenges, particularly when used for text. Its dark hue results in a low contrast ratio against standard light backgrounds, potentially making it difficult for users with visual impairments to read comfortably. A contrast ratio of at least 4.5:1 is recommended by WCAG (Web Content Accessibility Guidelines) for normal text and 3:1 for large text. Nile Blue often falls short of these recommendations when paired with white or very light colors. To improve accessibility, consider using Nile Blue sparingly for text elements. When it is used for text, ensure that it is paired with a very light background color that has been tested with a color contrast checker to ensure the guidelines are met. Alternatively, Nile Blue can be more effectively used for larger graphical elements, such as backgrounds or borders, where contrast sensitivity is less critical. Testing color combinations with accessibility tools is crucial to ensure readability for all users, including those with color blindness or low vision. Another tip is to consider users with cognitive impairments and use icons and labels appropriately to aid visual understanding.

Shades

Digital Color Formats

RGB
21 58 82
RGB21 58 82
Red
Green
Blue
HSL
203.61deg 59.22% 20.2%
203.6159.2220.2HSL
Hue
Saturation
Lightness
HWB
203.61deg 8.24% 67.84%
203.618.2467.84HWB
Hue
Whiteness
Blackness
hex#153A52
rgb21 58 82
hsl203.61deg 59.22% 20.2%
cmyk74.39% 29.27% 0% 67.84%
hwb203.61deg 8.24% 67.84%
xyz-d650.03 0.04 0.09
oklch0.334 0.0596 240.43
oklab0.334 -0.03 -0.05
CMYK
74.39% 29.27% 0% 67.84%
74.3929.27067.84CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.04 0.09
0.030.040.09XYZ
X
Y
Z
OKLCH
0.334 0.0596 240.43
0.3340.0596240.43LCH
Lightness
Chroma
Hue
OKLAB
0.334 -0.03 -0.05
0.334-0.03-0.05LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons