Chathams Blue

#1F4D79

General Information about Chathams Blue

The hexadecimal color #1F4D79, commonly referred to as Chathams Blue, is a dark shade of blue that embodies a sense of depth and sophistication. It is composed of 12.2% red, 30.2% green, and 47.5% blue. In the RGB color space, it's a balanced mix creating a hue that leans towards the cooler side of the spectrum. Its subdued nature makes it a versatile color for various applications, from digital design to interior decoration. The color evokes feelings of calmness, stability, and trustworthiness, making it a popular choice for projects that aim to convey these qualities. Its hex code provides a precise way to reproduce the color consistently across different platforms and media, ensuring accurate representation in both print and digital formats.

The color #1F4D79, also known as Chathams Blue, presents some accessibility considerations for web developers. Its relatively low lightness value means it can lack sufficient contrast when used as text against a white background. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Using #1F4D79 for text may require a carefully chosen background color to meet these standards. A lighter shade of yellow or a very light gray could provide the necessary contrast. When used for decorative elements or non-textual elements, contrast requirements are less stringent but should still be considered for users with low vision. Utilizing contrast checking tools during the design process is crucial to ensure readability and usability for all users, including those with visual impairments. Also, consider providing alternative styling options for users to customize their viewing experience.

Shades

Digital Color Formats

RGB
31 77 121
RGB31 77 121
Red
Green
Blue
HSL
209.33deg 59.21% 29.8%
209.3359.2129.8HSL
Hue
Saturation
Lightness
HWB
209.33deg 12.16% 52.55%
209.3312.1652.55HWB
Hue
Whiteness
Blackness
hex#1F4D79
rgb31 77 121
hsl209.33deg 59.21% 29.8%
cmyk74.38% 36.36% 0% 52.55%
hwb209.33deg 12.16% 52.55%
xyz-d650.07 0.07 0.19
oklch0.4112 0.0894 250.09
oklab0.4112 -0.03 -0.08
CMYK
74.38% 36.36% 0% 52.55%
74.3836.36052.55CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.19
0.070.070.19XYZ
X
Y
Z
OKLCH
0.4112 0.0894 250.09
0.41120.0894250.09LCH
Lightness
Chroma
Hue
OKLAB
0.4112 -0.03 -0.08
0.4112-0.03-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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