Nile Blue

#1F3449

General Information about #1F3449

The hexadecimal color code #1F3449, also known as Nile Blue, represents a dark shade of blue on the RGB color spectrum. It is composed of 12.2% red, 20.4% green, and 28.6% blue. In the RGB (red, green, blue) color model, these values translate to a relatively low intensity for each primary color, resulting in a subdued and somewhat muted tone. The color is commonly perceived as a cool and calming hue, reminiscent of deep waters or a twilight sky. It falls within the blue color family, which is often associated with feelings of tranquility, stability, and sophistication. In terms of color theory, #1F3449 can be described as a tertiary color, being a mixture of primary and secondary colors, contributing to its nuanced and complex character.

The hex color #1F3449, also known as Nile Blue, presents certain accessibility considerations for web development. Its relatively low lightness value indicates a darker color, which means it requires careful attention to contrast ratios when used for text or interactive elements. According to WCAG guidelines, sufficient contrast between text and background is crucial for readability, especially for users with visual impairments. For normal text (14pt/18px and larger), a contrast ratio of at least 4.5:1 is recommended, while for large text (18pt/24px and larger) and graphical elements, a ratio of 3:1 is sufficient. When using #1F3449 as a background color, lighter text colors like white or light gray should be considered to meet these contrast requirements. Tools like WebAIM's Contrast Checker can be used to verify contrast ratios and ensure accessibility compliance. It's also important to consider users with color vision deficiencies, and testing the color scheme with simulations for different types of color blindness is advisable.

Shades

Digital Color Formats

RGB
31 52 73
RGB31 52 73
Red
Green
Blue
HSL
210deg 40.38% 20.39%
21040.3820.39HSL
Hue
Saturation
Lightness
HWB
210deg 12.16% 71.37%
21012.1671.37HWB
Hue
Whiteness
Blackness
hex#1F3449
rgb31 52 73
hsl210deg 40.38% 20.39%
cmyk57.53% 28.77% 0% 71.37%
hwb210deg 12.16% 71.37%
xyz-d650.03 0.03 0.07
oklch0.3177 0.0465 249.5
oklab0.3177 -0.02 -0.04
CMYK
57.53% 28.77% 0% 71.37%
57.5328.77071.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.03 0.03 0.07
0.030.030.07XYZ
X
Y
Z
OKLCH
0.3177 0.0465 249.5
0.31770.0465249.5LCH
Lightness
Chroma
Hue
OKLAB
0.3177 -0.02 -0.04
0.3177-0.02-0.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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