Chathams Blue

#1C477C

General Information about Chathams Blue

The hex color #1C477C, also known as Chathams Blue, is a dark, muted shade of blue. In the RGB color model, it is composed of 11.0% red, 27.84% green, and 48.63% blue. In the CMYK color model, used for printing, it consists of 77% cyan, 43% magenta, 0% yellow, and 51% black. This color has a wavelength of approximately 475 nm. Its primary association is with calmness, stability, and trust, making it a popular choice for branding and design elements aiming to convey reliability and professionalism. The color is named 'Chathams Blue', after the Chatham Islands, east of New Zealand. The name was given in 1937.

The color #1C477C, also known as Chathams Blue, presents specific accessibility considerations for web developers. Its relatively low luminance can pose challenges in ensuring sufficient contrast with both foreground and background elements, particularly text. According to WCAG guidelines, sufficient contrast is crucial for users with visual impairments. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Developers should utilize contrast checking tools to verify compliance. When using #1C477C, lighter text colors like whites or light grays are generally recommended. Also consider providing alternative styling options for users who may need to customize the color scheme for better readability. Non-text elements also need contrast considerations. Besides contrast, ensure the color isn't used as the sole means of conveying information, as colorblind users may miss important details.

Shades

Digital Color Formats

RGB
28 71 124
RGB28 71 124
Red
Green
Blue
HSL
213.13deg 63.16% 29.8%
213.1363.1629.8HSL
Hue
Saturation
Lightness
HWB
213.13deg 10.98% 51.37%
213.1310.9851.37HWB
Hue
Whiteness
Blackness
hex#1C477C
rgb28 71 124
hsl213.13deg 63.16% 29.8%
cmyk77.42% 42.74% 0% 51.37%
hwb213.13deg 10.98% 51.37%
xyz-d650.06 0.06 0.2
oklch0.3972 0.1015 255.36
oklab0.3972 -0.03 -0.1
CMYK
77.42% 42.74% 0% 51.37%
77.4242.74051.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.06 0.2
0.060.060.2XYZ
X
Y
Z
OKLCH
0.3972 0.1015 255.36
0.39720.1015255.36LCH
Lightness
Chroma
Hue
OKLAB
0.3972 -0.03 -0.1
0.3972-0.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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