Chathams Blue

#1F497D

General Information about Chathams Blue

The hexadecimal color code #1F497D, also known as Chathams Blue, is a dark shade of blue, falling within the blue color family. It consists of 12.2% red, 28.6% green, and 49% blue. In the RGB color model, it is composed of these values. In the CMYK color model, it is composed of 75% cyan, 41% magenta, 0% yellow and 51% black. This color is often associated with feelings of tranquility, stability, and professionalism. It is commonly used in various design applications, including web design, corporate branding, and interior decoration. The color’s specific hue and saturation contribute to its versatility, allowing it to be paired with a wide range of other colors to achieve different aesthetic effects.

The color #1F497D, also known as Chathams Blue, offers moderate accessibility. Its darkness provides sufficient contrast against lighter backgrounds, making it suitable for text and interface elements. However, when paired with darker shades, readability may suffer. WCAG guidelines suggest a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text against its background. To ensure optimal accessibility, designers should test color combinations using contrast checkers. Using this color for interactive elements also means providing other visual cues, for example, underlining links. Careful consideration of color pairings is crucial for users with visual impairments. The color is also suited for large headings and graphic elements where legibility is less critical.

Shades

Digital Color Formats

RGB
31 73 125
RGB31 73 125
Red
Green
Blue
HSL
213.19deg 60.26% 30.59%
213.1960.2630.59HSL
Hue
Saturation
Lightness
HWB
213.19deg 12.16% 50.98%
213.1912.1650.98HWB
Hue
Whiteness
Blackness
hex#1F497D
rgb31 73 125
hsl213.19deg 60.26% 30.59%
cmyk75.2% 41.6% 0% 50.98%
hwb213.19deg 12.16% 50.98%
xyz-d650.07 0.07 0.2
oklch0.4039 0.0995 255.29
oklab0.4039 -0.03 -0.1
CMYK
75.2% 41.6% 0% 50.98%
75.241.6050.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.2
0.070.070.2XYZ
X
Y
Z
OKLCH
0.4039 0.0995 255.29
0.40390.0995255.29LCH
Lightness
Chroma
Hue
OKLAB
0.4039 -0.03 -0.1
0.4039-0.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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