Chathams Blue

#1D4E7B

General Information about #1D4E7B

The hexadecimal color #1D4E7B, also known as Chathams Blue, is a dark shade of blue with a subtle grayish undertone. It belongs to the blue color family and is often associated with feelings of calmness, stability, and trust. In the RGB color model, it consists of 11.4% red, 30.6% green, and 48.2% blue. The CMYK representation is 76.3% cyan, 36.1% magenta, 0% yellow, and 51.8% black. This color is commonly used in corporate branding and web design to project a sense of professionalism and reliability. Its relatively low saturation makes it easy on the eyes, allowing it to be used extensively without causing visual fatigue. It is a popular choice for backgrounds, headers, and text in digital interfaces. Chathams Blue can be used in various other fields as well because of its versatile and calm nature.

The color #1D4E7B, also known as Chathams Blue, presents some accessibility considerations for web development. Its darkness impacts text legibility. When using this color for background, ensure that the foreground text provides sufficient contrast. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text (14pt bold or 18pt regular) to comply with WCAG AA standards. Using a light color like #FFFFFF or #F0F0F0 as a foreground can achieve this. Tools like WebAIM's Contrast Checker can help verify contrast ratios. Also, avoid using color as the sole means of conveying important information; supplement it with text or icons. Consider users with visual impairments who may not perceive color differences effectively. This includes those with color blindness, low vision, or using assistive technologies.

Shades

Digital Color Formats

RGB
29 78 123
RGB29 78 123
Red
Green
Blue
HSL
208.72deg 61.84% 29.8%
208.7261.8429.8HSL
Hue
Saturation
Lightness
HWB
208.72deg 11.37% 51.76%
208.7211.3751.76HWB
Hue
Whiteness
Blackness
hex#1D4E7B
rgb29 78 123
hsl208.72deg 61.84% 29.8%
cmyk76.42% 36.59% 0% 51.76%
hwb208.72deg 11.37% 51.76%
xyz-d650.07 0.07 0.2
oklch0.4142 0.0919 249.46
oklab0.4142 -0.03 -0.09
CMYK
76.42% 36.59% 0% 51.76%
76.4236.59051.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.2
0.070.070.2XYZ
X
Y
Z
OKLCH
0.4142 0.0919 249.46
0.41420.0919249.46LCH
Lightness
Chroma
Hue
OKLAB
0.4142 -0.03 -0.09
0.4142-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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