Chathams Blue

#1B4B7D

General Information about Chathams Blue

Chathams Blue, represented by the hexadecimal color code #1B4B7D, is a dark, muted shade of blue that evokes feelings of calmness and reliability. It belongs to the family of blue colors and is often associated with professionalism, trustworthiness, and stability. In the RGB color model, it consists of 10.6% red, 29.4% green, and 49% blue. This specific combination results in a color that is less vibrant compared to pure blues, making it suitable for applications where a subtle and sophisticated appearance is desired. Named after the Chatham Islands, its subdued tone suggests a connection to the natural, maritime environments often associated with the region. This color is widely used in various design fields, from web development to interior design, owing to its versatility and understated elegance.

The color #1B4B7D, also known as Chathams Blue, presents some accessibility challenges, particularly in text-based applications. Due to its relatively low luminance, it may not provide sufficient contrast against lighter backgrounds, making it difficult for users with visual impairments to read text rendered in this color. According to WCAG guidelines, sufficient contrast is crucial for readability. To improve accessibility, consider pairing this color with very light shades like white or very pale yellows to ensure a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. In user interface design, avoid using this color for critical interactive elements without careful consideration of contrast. Testing with accessibility evaluation tools and real users is highly recommended to ensure compliance with accessibility standards and a positive user experience for everyone.

Shades

Digital Color Formats

RGB
27 75 125
RGB27 75 125
Red
Green
Blue
HSL
210.61deg 64.47% 29.8%
210.6164.4729.8HSL
Hue
Saturation
Lightness
HWB
210.61deg 10.59% 50.98%
210.6110.5950.98HWB
Hue
Whiteness
Blackness
hex#1B4B7D
rgb27 75 125
hsl210.61deg 64.47% 29.8%
cmyk78.4% 40% 0% 50.98%
hwb210.61deg 10.59% 50.98%
xyz-d650.07 0.07 0.2
oklch0.4073 0.0986 252.32
oklab0.4073 -0.03 -0.09
CMYK
78.4% 40% 0% 50.98%
78.440050.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.2
0.070.070.2XYZ
X
Y
Z
OKLCH
0.4073 0.0986 252.32
0.40730.0986252.32LCH
Lightness
Chroma
Hue
OKLAB
0.4073 -0.03 -0.09
0.4073-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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