Chathams Blue

#1A4F81

General Information

Chathams Blue, with the hexadecimal code #1A4F81, is a dark, muted shade of blue. It's a color often associated with stability, trust, and intelligence, making it suitable for a wide range of applications. In the RGB color model, it is composed of 10.2% red, 31% green, and 50.6% blue. In the CMYK color model, it is composed of 80% cyan, 39% magenta, 0% yellow, and 49% black. This color's relatively low saturation contributes to its calming and professional feel. Historically, blue has been associated with royalty and authority, lending this particular shade a sense of sophistication. Its slightly cool undertones make it versatile for both print and digital design.

The color #1A4F81, also known as Chathams Blue, presents some accessibility challenges, especially concerning color contrast. When used as a background color, it's crucial to ensure that the foreground text or elements have sufficient contrast to meet WCAG guidelines. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Lighter colors like white, light yellow, or very pale shades of green or blue would generally work better as foreground colors. Tools like WebAIM's Contrast Checker can be utilized to assess contrast ratios. Also, avoid using this color as the sole indicator of interactive elements or important information, as users with color vision deficiencies might not be able to distinguish them effectively. Consider providing additional visual cues like underlines, icons, or patterns.

Shades

Digital Color Formats

RGB
26 79 129
RGB26 79 129
Red
Green
Blue
HSL
209.13deg 66.45% 30.39%
209.1366.4530.39HSL
Hue
Saturation
Lightness
HWB
209.13deg 10.2% 49.41%
209.1310.249.41HWB
Hue
Whiteness
Blackness
hex#1A4F81
rgb26 79 129
hsl209.13deg 66.45% 30.39%
cmyk79.84% 38.76% 0% 49.41%
hwb209.13deg 10.2% 49.41%
xyz-d650.07 0.07 0.22
oklch0.4195 0.1001 250.53
oklab0.4195 -0.03 -0.09
CMYK
79.84% 38.76% 0% 49.41%
79.8438.76049.41CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.22
0.070.070.22XYZ
X
Y
Z
OKLCH
0.4195 0.1001 250.53
0.41950.1001250.53LCH
Lightness
Chroma
Hue
OKLAB
0.4195 -0.03 -0.09
0.4195-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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