Chathams Blue

#1B4980

General Information about Chathams Blue

The hex color #1B4980, also known as Chathams Blue, is a dark and muted shade of blue. It belongs to the blue color family and has a sophisticated and calming presence. In the RGB color model, #1B4980 consists of 10.6% red, 28.6% green, and 50.2% blue. In the CMYK color model, it is composed of 79% cyan, 43% magenta, 0% yellow, and 50% black. This color is often associated with trustworthiness, stability, and depth. Its dark nature makes it suitable for creating a sense of seriousness and reliability, making it a popular choice for corporate branding and designs that need to convey professionalism and confidence. The color name "Chathams Blue" evokes a sense of calmness and tranquility, suggesting a connection to the sea or sky.

The hex color #1B4980, also known as Chathams Blue, presents specific accessibility considerations for web developers. Its relatively dark hue means it requires careful pairing with text and other foreground elements to ensure sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text against its background. Using a light color like white, light yellow, or a pale shade of gray for text on a #1B4980 background is crucial to meet these standards. Tools like contrast checkers can help developers verify that the contrast ratio is adequate. Furthermore, avoid using this color as the sole indicator for interactive elements, such as links or buttons. Supplement color with other visual cues, like underlines or borders, to ensure accessibility for users with color vision deficiencies. Thoughtful application of #1B4980, keeping accessibility in mind, will make web content more inclusive and user-friendly.

Shades

Digital Color Formats

RGB
27 73 128
RGB27 73 128
Red
Green
Blue
HSL
212.67deg 65.16% 30.39%
212.6765.1630.39HSL
Hue
Saturation
Lightness
HWB
212.67deg 10.59% 49.8%
212.6710.5949.8HWB
Hue
Whiteness
Blackness
hex#1B4980
rgb27 73 128
hsl212.67deg 65.16% 30.39%
cmyk78.91% 42.97% 0% 49.8%
hwb212.67deg 10.59% 49.8%
xyz-d650.07 0.07 0.21
oklch0.4044 0.1052 254.96
oklab0.4044 -0.03 -0.1
CMYK
78.91% 42.97% 0% 49.8%
78.9142.97049.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.21
0.070.070.21XYZ
X
Y
Z
OKLCH
0.4044 0.1052 254.96
0.40440.1052254.96LCH
Lightness
Chroma
Hue
OKLAB
0.4044 -0.03 -0.1
0.4044-0.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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