Chathams Blue

#1F4E79

General Information about Chathams Blue

The hex color code #1F4E79, also known as Chathams Blue, is a dark shade of blue that evokes feelings of calmness, stability, and trustworthiness. It belongs to the blue color family and is often associated with professionalism and sophistication. In the RGB color model, it is composed of 12.2% red, 30.6% green, and 47.5% blue. This color is frequently used in corporate branding, website design, and interior decor to convey a sense of reliability and authority. Its muted tone makes it versatile for various applications, providing a solid background or accent color. The name 'Chathams Blue' suggests a connection to the Chatham Islands, potentially reflecting the color's resemblance to the ocean or sky found in that region.

The color #1F4E79, also known as Chathams Blue, presents some accessibility challenges, especially when used as text on a white background. Its relatively low lightness value results in a lower contrast ratio, potentially making it difficult for users with visual impairments to read. 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 #1F4E79 for text may not meet these guidelines unless paired with a very light background color. To improve accessibility, consider using a lighter shade of blue or a contrasting color like white or yellow for text. When using #1F4E79 as a background color, ensure that the text color provides sufficient contrast. Tools like contrast checkers can help evaluate and adjust color combinations for optimal readability. Also, it is good to offer alternative styling options so that the user can override the defaults. Remember that prioritizing accessibility ensures a better user experience for everyone.

Shades

Digital Color Formats

RGB
31 78 121
RGB31 78 121
Red
Green
Blue
HSL
208.67deg 59.21% 29.8%
208.6759.2129.8HSL
Hue
Saturation
Lightness
HWB
208.67deg 12.16% 52.55%
208.6712.1652.55HWB
Hue
Whiteness
Blackness
hex#1F4E79
rgb31 78 121
hsl208.67deg 59.21% 29.8%
cmyk74.38% 35.54% 0% 52.55%
hwb208.67deg 12.16% 52.55%
xyz-d650.07 0.07 0.19
oklch0.4137 0.0884 249.12
oklab0.4137 -0.03 -0.08
CMYK
74.38% 35.54% 0% 52.55%
74.3835.54052.55CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.19
0.070.070.19XYZ
X
Y
Z
OKLCH
0.4137 0.0884 249.12
0.41370.0884249.12LCH
Lightness
Chroma
Hue
OKLAB
0.4137 -0.03 -0.08
0.4137-0.03-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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