Chathams Blue

#1F537C

General Information about Chathams Blue

Chathams Blue, represented by the hexadecimal code #1F537C, is a dark, muted shade of blue that evokes feelings of calmness, stability, and trustworthiness. It is named after the Chatham Islands, which adds a geographical and natural association to the color. In the RGB color model, it is composed of 12.2% red, 32.5% green, and 48.6% blue. In the CMYK color model, used for printing, it consists of 75% cyan, 33% magenta, 0% yellow, and 51% black. This color is often used in corporate branding, web design, and interior design to convey reliability and professionalism. Its relatively low saturation makes it easy on the eyes, suitable for extended reading or viewing.

The color #1F537C, also known as Chathams Blue, presents some accessibility challenges, particularly when used as a foreground color against a white or very light background. Its relatively low luminance value means that the contrast ratio may not meet WCAG (Web Content Accessibility Guidelines) standards for text legibility. To ensure accessibility, it's crucial to pair this color with a light background to achieve a sufficient contrast ratio (ideally 4.5:1 for regular text and 3:1 for large text). When using this color for interactive elements like buttons or links, it's essential to provide clear visual cues, such as underlines or hover effects, to help users with visual impairments identify interactive elements. Furthermore, avoid using this color as the sole indicator of important information, as colorblind users may not be able to distinguish it effectively. Consider providing alternative textual or symbolic cues to convey meaning. Thoroughly testing with accessibility tools is recommended.

Shades

Digital Color Formats

RGB
31 83 124
RGB31 83 124
Red
Green
Blue
HSL
206.45deg 60% 30.39%
206.456030.39HSL
Hue
Saturation
Lightness
HWB
206.45deg 12.16% 51.37%
206.4512.1651.37HWB
Hue
Whiteness
Blackness
hex#1F537C
rgb31 83 124
hsl206.45deg 60% 30.39%
cmyk75% 33.06% 0% 51.37%
hwb206.45deg 12.16% 51.37%
xyz-d650.07 0.08 0.2
oklch0.4281 0.0875 245.83
oklab0.4281 -0.04 -0.08
CMYK
75% 33.06% 0% 51.37%
7533.06051.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.08 0.2
0.070.080.2XYZ
X
Y
Z
OKLCH
0.4281 0.0875 245.83
0.42810.0875245.83LCH
Lightness
Chroma
Hue
OKLAB
0.4281 -0.04 -0.08
0.4281-0.04-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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