Chathams Blue

#1F4F7C

General Information

Chathams Blue, represented by the hexadecimal color code #1F4F7C, is a deep and muted shade of blue. It belongs to the family of blue colors, often associated with serenity, stability, and depth. In the RGB color model, it is composed of 12.2% red, 31% green, and 48.6% blue. The color's CMYK values are 75% cyan, 37% magenta, 0% yellow, and 51% black. The name suggests a maritime connection, potentially referencing the Chathams Islands or a similar association with the sea. It exhibits a relatively low luminance, making it appear darker and more subdued than brighter blues. It is often used in contexts where a sense of trustworthiness and reliability is desired.

The color #1F4F7C, also known as Chathams Blue, presents some accessibility considerations. Its relative luminance is quite low, which means that text rendered in this color on a white background may not provide sufficient contrast for users with visual impairments, in accordance with WCAG guidelines. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #1F4F7C for text, it is crucial to pair it with a light background to ensure readability. Alternatively, when used as a background color, pairing it with light-colored text will significantly improve accessibility. It is advisable to test the color combination with accessibility evaluation tools to verify compliance with accessibility standards and accommodate users with diverse visual needs. Consideration should also be given to users with color blindness, ensuring that color is not the sole means of conveying important information.

Shades

Digital Color Formats

RGB
31 79 124
RGB31 79 124
Red
Green
Blue
HSL
209.03deg 60% 30.39%
209.036030.39HSL
Hue
Saturation
Lightness
HWB
209.03deg 12.16% 51.37%
209.0312.1651.37HWB
Hue
Whiteness
Blackness
hex#1F4F7C
rgb31 79 124
hsl209.03deg 60% 30.39%
cmyk75% 36.29% 0% 51.37%
hwb209.03deg 12.16% 51.37%
xyz-d650.07 0.07 0.2
oklch0.418 0.0914 249.75
oklab0.418 -0.03 -0.09
CMYK
75% 36.29% 0% 51.37%
7536.29051.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.2
0.070.070.2XYZ
X
Y
Z
OKLCH
0.418 0.0914 249.75
0.4180.0914249.75LCH
Lightness
Chroma
Hue
OKLAB
0.418 -0.03 -0.09
0.418-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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