Chathams Blue

#1B517D

General Information about Chathams Blue

Chathams Blue, represented by the hexadecimal color code #1B517D, is a dark shade of blue that evokes feelings of serenity, stability, and trustworthiness. In the RGB color model, it is composed of 10.6% red, 31.8% green, and 49% blue. In the CMYK color model, it consists of 78% cyan, 35% magenta, 0% yellow, and 51% black. This particular shade of blue is often associated with professionalism and reliability, making it a popular choice for corporate branding and website design. Its depth and richness allow it to be used effectively as both a primary and secondary color. Understanding the technical specifications and psychological associations of Chathams Blue can assist designers in making informed decisions about its application in various creative projects.

The color #1B517D, also known as Chathams Blue, presents some accessibility considerations for web developers. Its relatively dark hue means that sufficient contrast is crucial when pairing it with text or other interactive elements. 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. When using #1B517D as a background color, ensure that any text placed on top of it is a light color such as white or a very light shade of yellow to meet these contrast requirements. Tools like contrast checkers can be invaluable in assessing the accessibility of your color pairings. Failure to provide adequate contrast can render content difficult or impossible to read for users with visual impairments, thus hindering their ability to access information effectively. Additionally, consider providing alternative ways to convey information beyond color alone, such as using icons or text labels, to accommodate users with color blindness.

Shades

Digital Color Formats

RGB
27 81 125
RGB27 81 125
Red
Green
Blue
HSL
206.94deg 64.47% 29.8%
206.9464.4729.8HSL
Hue
Saturation
Lightness
HWB
206.94deg 10.59% 50.98%
206.9410.5950.98HWB
Hue
Whiteness
Blackness
hex#1B517D
rgb27 81 125
hsl206.94deg 64.47% 29.8%
cmyk78.4% 35.2% 0% 50.98%
hwb206.94deg 10.59% 50.98%
xyz-d650.07 0.08 0.2
oklch0.4223 0.0923 247.1
oklab0.4223 -0.04 -0.09
CMYK
78.4% 35.2% 0% 50.98%
78.435.2050.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.08 0.2
0.070.080.2XYZ
X
Y
Z
OKLCH
0.4223 0.0923 247.1
0.42230.0923247.1LCH
Lightness
Chroma
Hue
OKLAB
0.4223 -0.04 -0.09
0.4223-0.04-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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