Chathams Blue

#1F4B88

General Information about Chathams Blue (#1F4B88)

The hexadecimal color #1F4B88, also known as Chathams Blue, is a deep, muted shade of blue that evokes feelings of calmness, stability, and trust. In the RGB color model, it is composed of 12.2% red, 29.4% green, and 53.3% blue. Its CMYK representation is 77% cyan, 63% magenta, 0% yellow, and 47% black. This color is often associated with professionalism and reliability, making it a popular choice for corporate branding and designs. Chathams Blue is a versatile color that can be used in a variety of contexts, from web design to interior design, where a sense of sophistication and serenity is desired.

The hex color #1F4B88, also known as Chathams Blue, presents some accessibility challenges, particularly for users with visual impairments. Its relatively low luminance value of 0.13 means that it requires careful consideration when used as a background or text color. According to WCAG guidelines, it fails the contrast ratio test for normal text (4.5:1) and large text (3:1) against a white background. Therefore, it's crucial to pair it with a light foreground color, such as white or a very pale yellow, to ensure sufficient contrast. When using #1F4B88 for interactive elements like buttons or links, providing additional visual cues, such as underlines or borders, can further enhance usability. Remember to test color combinations using accessibility evaluation tools to confirm compliance with accessibility standards and to accommodate users with varying visual abilities and preferences.

Shades

Digital Color Formats

RGB
31 75 136
RGB31 75 136
Red
Green
Blue
HSL
214.86deg 62.87% 32.75%
214.8662.8732.75HSL
Hue
Saturation
Lightness
HWB
214.86deg 12.16% 46.67%
214.8612.1646.67HWB
Hue
Whiteness
Blackness
hex#1F4B88
rgb31 75 136
hsl214.86deg 62.87% 32.75%
cmyk77.21% 44.85% 0% 46.67%
hwb214.86deg 12.16% 46.67%
xyz-d650.08 0.07 0.24
oklch0.4162 0.1128 257.36
oklab0.4162 -0.02 -0.11
CMYK
77.21% 44.85% 0% 46.67%
77.2144.85046.67CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.08 0.07 0.24
0.080.070.24XYZ
X
Y
Z
OKLCH
0.4162 0.1128 257.36
0.41620.1128257.36LCH
Lightness
Chroma
Hue
OKLAB
0.4162 -0.02 -0.11
0.4162-0.02-0.11LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons