Chathams Blue

#1A4B8A

General Information about Chathams Blue

The hexadecimal color code #1A4B8A represents a shade of blue known as Chathams Blue. It is composed of 10.2% red, 29.4% green, and 54.1% blue. In the RGB color space, it has values of R:26, G:75, B:138. In the CMYK color space, its composition is 81.16% cyan, 45.65% magenta, 0% yellow, and 45.88% black. This color is often associated with feelings of calmness, trust, and stability. It is widely used in corporate branding, web design, and interior decoration. Colors similar to Chathams Blue include various shades of navy and other deep blues. The color derives its name from the color's common association with naval uniforms and the deep sea.

The color #1A4B8A, also known as Chathams Blue, presents moderate accessibility challenges. Its relatively low luminance value of 0.056 means that it requires careful consideration when used as a background or text color. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text against its background to ensure readability for users with visual impairments. When using #1A4B8A, it is crucial to pair it with a light color for text or interactive elements to meet these contrast requirements. For instance, using white or a very light shade of yellow can improve readability. Tools like contrast checkers can help verify compliance with accessibility standards and identify appropriate color combinations. Consider increasing the font size or using bold text to enhance legibility further when using this color for text. Also, avoid using this color as the sole indicator of interactive elements such as links, as colorblind users may not be able to distinguish them.

Shades

Digital Color Formats

RGB
26 75 138
RGB26 75 138
Red
Green
Blue
HSL
213.75deg 68.29% 32.16%
213.7568.2932.16HSL
Hue
Saturation
Lightness
HWB
213.75deg 10.2% 45.88%
213.7510.245.88HWB
Hue
Whiteness
Blackness
hex#1A4B8A
rgb26 75 138
hsl213.75deg 68.29% 32.16%
cmyk81.16% 45.65% 0% 45.88%
hwb213.75deg 10.2% 45.88%
xyz-d650.08 0.07 0.25
oklch0.416 0.1172 256.43
oklab0.416 -0.03 -0.11
CMYK
81.16% 45.65% 0% 45.88%
81.1645.65045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.07 0.25
0.080.070.25XYZ
X
Y
Z
OKLCH
0.416 0.1172 256.43
0.4160.1172256.43LCH
Lightness
Chroma
Hue
OKLAB
0.416 -0.03 -0.11
0.416-0.03-0.11LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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