Chathams Blue

#1F506E

General Information about Chathams Blue

The hexadecimal color #1F506E, also known as Chathams Blue, is a dark, muted shade of blue-cyan. It is composed of 12.2% red, 31.4% green, and 43.1% blue. In the RGB color model, this translates to 31 red, 80 green, and 110 blue. When converted to the CMYK color model, it consists of 71.82% cyan, 27.27% magenta, 0% yellow, and 56.86% black. Chathams Blue is often associated with feelings of calmness, stability, and trustworthiness. It is a versatile color that can be used in various design applications, from web design to branding. The color is perceived as stable and trustworthy.

The color #1F506E, also known as Chathams Blue, presents some accessibility challenges, especially when used as a background or text color. Its relatively low luminance (darkness) means that it requires careful consideration of color contrast ratios to ensure readability and usability for individuals with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text (14pt bold or 18pt regular) against the background. When using #1F506E, pairing it with very light colors such as whites or very light yellows can provide sufficient contrast. Tools like contrast checkers are essential for web developers to test and verify that their color choices meet these accessibility standards, ensuring a better user experience for everyone, including those with low vision or color blindness.

Shades

Digital Color Formats

RGB
31 80 110
RGB31 80 110
Red
Green
Blue
HSL
202.78deg 56.03% 27.65%
202.7856.0327.65HSL
Hue
Saturation
Lightness
HWB
202.78deg 12.16% 56.86%
202.7812.1656.86HWB
Hue
Whiteness
Blackness
hex#1F506E
rgb31 80 110
hsl202.78deg 56.03% 27.65%
cmyk71.82% 27.27% 0% 56.86%
hwb202.78deg 12.16% 56.86%
xyz-d650.06 0.07 0.16
oklch0.4124 0.0726 238.99
oklab0.4124 -0.04 -0.06
CMYK
71.82% 27.27% 0% 56.86%
71.8227.27056.86CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.07 0.16
0.060.070.16XYZ
X
Y
Z
OKLCH
0.4124 0.0726 238.99
0.41240.0726238.99LCH
Lightness
Chroma
Hue
OKLAB
0.4124 -0.04 -0.06
0.4124-0.04-0.06LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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