Chathams Blue

#1E4D73

General Information about Chathams Blue

The hex color #1E4D73, known as Chathams Blue, is a deep, muted shade of blue often associated with calmness, stability, and sophistication. It belongs to the blue color family and has RGB values of R:30, G:77, B:115, which translates to approximately 11.76% red, 30.2% green, and 45.1% blue. In the CMYK color model, it's composed of 74% cyan, 33% magenta, 0% yellow, and 55% black. This color is versatile and finds use in various design applications, including web design, graphic design, and branding. Its subdued nature makes it suitable for backgrounds, text, and accent elements, lending a professional and trustworthy feel to projects. Because it is a darker shade of blue, consider accessibility and how it contrasts with other colors.

The hex color #1e4d73, also known as Chathams Blue, presents some accessibility challenges, particularly concerning color contrast. When used as a background color, text overlaid on it should be carefully assessed to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Given the relatively dark nature of Chathams Blue, lighter colors such as whites, creams, or light yellows would be appropriate choices for text. Tools like contrast checkers can be used to verify compliance. Additionally, consider users with visual impairments who may rely on screen readers or assistive technologies. Semantic HTML and ARIA attributes can enhance the accessibility of elements using this color, ensuring a positive user experience for everyone, even with color blindness. For interactive elements like buttons, providing clear visual cues beyond color alone (e.g., underlines, icons) is also essential for accessibility.

Shades

Digital Color Formats

RGB
30 77 115
RGB30 77 115
Red
Green
Blue
HSL
206.82deg 58.62% 28.43%
206.8258.6228.43HSL
Hue
Saturation
Lightness
HWB
206.82deg 11.76% 54.9%
206.8211.7654.9HWB
Hue
Whiteness
Blackness
hex#1E4D73
rgb30 77 115
hsl206.82deg 58.62% 28.43%
cmyk73.91% 33.04% 0% 54.9%
hwb206.82deg 11.76% 54.9%
xyz-d650.06 0.07 0.17
oklch0.4071 0.0818 246.19
oklab0.4071 -0.03 -0.07
CMYK
73.91% 33.04% 0% 54.9%
73.9133.04054.9CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.07 0.17
0.060.070.17XYZ
X
Y
Z
OKLCH
0.4071 0.0818 246.19
0.40710.0818246.19LCH
Lightness
Chroma
Hue
OKLAB
0.4071 -0.03 -0.07
0.4071-0.03-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons