Chathams Blue

#1A4C81

General Information about Chathams Blue (#1A4C81)

The color #1A4C81, also known as Chathams Blue, is a dark and muted shade of blue that evokes feelings of calmness, stability, and trust. It belongs to the blue color family and is characterized by its relatively low saturation and brightness. In the RGB color model, it consists of 10.2% red, 29.8% green, and 50.6% blue. In the CMYK color model, used for printing, it is composed of 80% cyan, 41% magenta, 0% yellow, and 49% black. This color is often associated with professionalism, intelligence, and security, making it a popular choice for corporate branding and websites. It is also found in nature, such as in deep ocean waters or twilight skies, adding to its calming and soothing qualities.

The hex color #1a4c81, also known as Chathams Blue, presents some accessibility challenges, particularly when used as text on a white background. Its relatively low lightness value (Luminance) results in insufficient contrast, potentially making it difficult for users with visual impairments to read. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. This color may not meet those ratios, so it is highly advisable to use it for graphical elements or to pair it with lighter text colors to ensure readability. When using this color for interactive elements, such as buttons or links, ensure sufficient contrast for different states (hover, focus, active) to provide clear visual cues for users.

Shades

Digital Color Formats

RGB
26 76 129
RGB26 76 129
Red
Green
Blue
HSL
210.87deg 66.45% 30.39%
210.8766.4530.39HSL
Hue
Saturation
Lightness
HWB
210.87deg 10.2% 49.41%
210.8710.249.41HWB
Hue
Whiteness
Blackness
hex#1A4C81
rgb26 76 129
hsl210.87deg 66.45% 30.39%
cmyk79.84% 41.09% 0% 49.41%
hwb210.87deg 10.2% 49.41%
xyz-d650.07 0.07 0.22
oklch0.4121 0.1034 252.85
oklab0.4121 -0.03 -0.1
CMYK
79.84% 41.09% 0% 49.41%
79.8441.09049.41CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.22
0.070.070.22XYZ
X
Y
Z
OKLCH
0.4121 0.1034 252.85
0.41210.1034252.85LCH
Lightness
Chroma
Hue
OKLAB
0.4121 -0.03 -0.1
0.4121-0.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons