Chathams Blue

#1F4C79

General Information about Chathams Blue (#1F4C79)

The color #1F4C79, known as Chathams Blue, is a dark, muted shade of blue. In the RGB color model, it consists of 12.2% red, 29.8% green, and 47.5% blue. It appears as a deep, somewhat desaturated blue, often associated with calmness, stability, and sophistication. It is frequently used in corporate branding and design due to its professional and trustworthy appearance. The color's hexadecimal value provides a precise way to define it in digital applications. This shade of blue is perceived as both serious and calming, making it suitable for creating a sense of reliability and trust.

The hex color #1F4C79, also known as Chathams Blue, presents moderate accessibility challenges. Its relatively low luminance value of 0.12 necessitates careful consideration when used as text or interactive elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text against its background. When pairing #1F4C79 with lighter colors, ensuring sufficient contrast is crucial for users with visual impairments. Using contrast checker tools can help determine the compliance of color combinations. It's recommended to avoid pairing it with similar dark shades, like dark grays or blues, which reduce readability. A lighter hue for text on a #1F4C79 background would vastly improve accessibility.

Shades

Digital Color Formats

RGB
31 76 121
RGB31 76 121
Red
Green
Blue
HSL
210deg 59.21% 29.8%
21059.2129.8HSL
Hue
Saturation
Lightness
HWB
210deg 12.16% 52.55%
21012.1652.55HWB
Hue
Whiteness
Blackness
hex#1F4C79
rgb31 76 121
hsl210deg 59.21% 29.8%
cmyk74.38% 37.19% 0% 52.55%
hwb210deg 12.16% 52.55%
xyz-d650.07 0.07 0.19
oklch0.4087 0.0905 251.03
oklab0.4087 -0.03 -0.09
CMYK
74.38% 37.19% 0% 52.55%
74.3837.19052.55CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.19
0.070.070.19XYZ
X
Y
Z
OKLCH
0.4087 0.0905 251.03
0.40870.0905251.03LCH
Lightness
Chroma
Hue
OKLAB
0.4087 -0.03 -0.09
0.4087-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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