Chathams Blue

#1F4B7C

General Information about Chathams Blue

The hexadecimal color #1F4B7C, also known as Chathams Blue, is a dark, muted shade of blue with a slight grayish undertone. It falls within the blue color family but has a more sophisticated and reserved feel compared to brighter, more vibrant blues. In the RGB color model, it is composed of 12.2% red, 29.4% green, and 48.6% blue. The CMYK representation is 75% cyan, 40% magenta, 0% yellow, and 51% black. This color is often associated with calmness, trust, and stability. It is a versatile hue suitable for a range of applications, from web design to interior decor, where a sense of professionalism and serenity is desired.

The color #1F4B7C, also known as Chathams Blue, offers moderate accessibility considerations for web design. Its relatively dark hue provides a decent contrast ratio against white backgrounds, generally meeting WCAG AA standards for normal text and large text elements. However, when pairing it with darker shades or colors of similar luminance, contrast can drop below acceptable levels, potentially causing readability issues for users with visual impairments. To enhance accessibility, always check the contrast ratio using online tools and consider using lighter text colors like white, light gray or light yellow on this background, or consider using a lighter background color. Additionally, avoid using this color as the sole indicator for interactive elements; supplement it with other cues like underlines, icons, or text labels to ensure usability for individuals with color blindness.

Shades

Digital Color Formats

RGB
31 75 124
RGB31 75 124
Red
Green
Blue
HSL
211.61deg 60% 30.39%
211.616030.39HSL
Hue
Saturation
Lightness
HWB
211.61deg 12.16% 51.37%
211.6112.1651.37HWB
Hue
Whiteness
Blackness
hex#1F4B7C
rgb31 75 124
hsl211.61deg 60% 30.39%
cmyk75% 39.52% 0% 51.37%
hwb211.61deg 12.16% 51.37%
xyz-d650.07 0.07 0.2
oklch0.4081 0.0958 253.29
oklab0.4081 -0.03 -0.09
CMYK
75% 39.52% 0% 51.37%
7539.52051.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.2
0.070.070.2XYZ
X
Y
Z
OKLCH
0.4081 0.0958 253.29
0.40810.0958253.29LCH
Lightness
Chroma
Hue
OKLAB
0.4081 -0.03 -0.09
0.4081-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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