Chathams Blue

#1B497D

General Information

Chathams Blue, with the hexadecimal code #1B497D, is a deep, muted shade of blue often associated with sophistication and stability. In the RGB color model, it is composed of 10.6% red, 28.6% green, and 49% blue. In the CMYK color model, it consists of 78% cyan, 42% magenta, 0% yellow, and 51% black. This color is perceived as calming and professional, making it a popular choice for various applications, from web design to corporate branding. Its subtle depth allows it to be used effectively as both a primary and secondary color, depending on the desired aesthetic. The name 'Chathams Blue' likely derives from the Chatham Islands, a remote archipelago known for its striking blue waters, which the color aims to evoke.

The color #1B497D, also known as Chathams Blue, presents some accessibility challenges, particularly regarding color contrast. When using this color for text or interactive elements, it is crucial to ensure sufficient contrast against the background. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Using online contrast checkers, it is important to test combinations with lighter text colors to ensure readability for users with visual impairments. A darker color can cause issues for users if not properly implemented. Thoughtful design considerations, such as using larger font sizes or incorporating borders, can mitigate potential accessibility issues and ensure inclusivity for all users.

Shades

Digital Color Formats

RGB
27 73 125
RGB27 73 125
Red
Green
Blue
HSL
211.84deg 64.47% 29.8%
211.8464.4729.8HSL
Hue
Saturation
Lightness
HWB
211.84deg 10.59% 50.98%
211.8410.5950.98HWB
Hue
Whiteness
Blackness
hex#1B497D
rgb27 73 125
hsl211.84deg 64.47% 29.8%
cmyk78.4% 41.6% 0% 50.98%
hwb211.84deg 10.59% 50.98%
xyz-d650.07 0.06 0.2
oklch0.4024 0.1009 253.88
oklab0.4024 -0.03 -0.1
CMYK
78.4% 41.6% 0% 50.98%
78.441.6050.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.06 0.2
0.070.060.2XYZ
X
Y
Z
OKLCH
0.4024 0.1009 253.88
0.40240.1009253.88LCH
Lightness
Chroma
Hue
OKLAB
0.4024 -0.03 -0.1
0.4024-0.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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