Chathams Blue

#1B497C

General Information

Chathams Blue, represented by the hexadecimal code #1B497C, is a deep, muted blue color. It evokes feelings of calmness, stability, and trustworthiness. In color psychology, blue is often associated with intelligence, efficiency, and serenity. This particular shade of blue is named after the Chatham Islands, suggesting a connection to the ocean and nature. It is a versatile color that can be used in a variety of contexts, from corporate branding to interior design. The color is composed of 10.6% red, 28.6% green and 48.6% blue. It is considered a dark color with a relatively low saturation, making it easy on the eyes and suitable for extended viewing.

The color #1B497C, also known as Chathams Blue, presents some accessibility challenges, especially when used for text. Its relatively low lightness value of 0.15 means that it needs to be paired with very light colors to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text. Using this color for text on a white background might not meet these criteria. Therefore, it is essential to use a contrast checker to verify compliance. When using this color for interactive elements like buttons or links, ensure that there is a clear visual indication of the interactive state, such as a change in color or the addition of an underline, to aid users with visual impairments.

Shades

Digital Color Formats

RGB
27 73 124
RGB27 73 124
Red
Green
Blue
HSL
211.55deg 64.24% 29.61%
211.5564.2429.61HSL
Hue
Saturation
Lightness
HWB
211.55deg 10.59% 51.37%
211.5510.5951.37HWB
Hue
Whiteness
Blackness
hex#1B497C
rgb27 73 124
hsl211.55deg 64.24% 29.61%
cmyk78.23% 41.13% 0% 51.37%
hwb211.55deg 10.59% 51.37%
xyz-d650.06 0.06 0.2
oklch0.4017 0.0995 253.5
oklab0.4017 -0.03 -0.1
CMYK
78.23% 41.13% 0% 51.37%
78.2341.13051.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.06 0.2
0.060.060.2XYZ
X
Y
Z
OKLCH
0.4017 0.0995 253.5
0.40170.0995253.5LCH
Lightness
Chroma
Hue
OKLAB
0.4017 -0.03 -0.1
0.4017-0.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons