Chathams Blue

#1C4E80

General Information about Chathams Blue

The color #1C4E80, also known as Chathams Blue, is a deep and sophisticated shade of blue. In the RGB color model, it is composed of 11.0% red, 30.6% green, and 50.2% blue. This combination results in a color that evokes feelings of tranquility, stability, and trust. In the CMYK color model, it consists of 78.1% cyan, 38.9% magenta, 0.0% yellow, and 49.8% black. This indicates that it is a color that requires a significant amount of cyan to achieve its characteristic hue. The hexadecimal representation, #1C4E80, is commonly used in web design and digital applications to precisely define this specific shade of blue. Its name, Chathams Blue, suggests a connection to a specific location or association, further adding to its unique identity.

The hex color #1C4E80, also known as Chathams Blue, presents specific accessibility considerations for web developers. Its relatively dark hue means that careful attention must be paid to color contrast. When used as a background color, it necessitates light-colored text to ensure readability for all users, including those with visual impairments. According to WCAG guidelines, 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. Additionally, avoid using this color as the sole means of conveying information, as colorblind users may not be able to distinguish it effectively. Providing alternative cues, such as text labels or icons, can significantly improve accessibility. Ensuring sufficient spacing between elements and avoiding overly intricate designs further enhances usability when employing this deep blue shade.

Shades

Digital Color Formats

RGB
28 78 128
RGB28 78 128
Red
Green
Blue
HSL
210deg 64.1% 30.59%
21064.130.59HSL
Hue
Saturation
Lightness
HWB
210deg 10.98% 49.8%
21010.9849.8HWB
Hue
Whiteness
Blackness
hex#1C4E80
rgb28 78 128
hsl210deg 64.1% 30.59%
cmyk78.12% 39.06% 0% 49.8%
hwb210deg 10.98% 49.8%
xyz-d650.07 0.07 0.21
oklch0.417 0.0991 251.49
oklab0.417 -0.03 -0.09
CMYK
78.12% 39.06% 0% 49.8%
78.1239.06049.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.21
0.070.070.21XYZ
X
Y
Z
OKLCH
0.417 0.0991 251.49
0.4170.0991251.49LCH
Lightness
Chroma
Hue
OKLAB
0.417 -0.03 -0.09
0.417-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons