Chathams Blue

#1B507D

General Information about Chathams Blue

The color #1B507D, known as Chathams Blue, is a dark, muted shade of blue that evokes feelings of calmness, stability, and trustworthiness. It belongs to the blue color family, which is often associated with serenity, intelligence, and professionalism. In web design, this color can be effectively used for backgrounds, headers, and other visual elements to create a sense of reliability and sophistication. The hex code #1B507D translates to RGB values of R:27, G:80, B:125, and a CMYK value of C:78, M:36, Y:0, K:51. Its cool and understated nature makes it a versatile choice for various design applications. The color is named after the Chatham Islands, known for their serene and calming seascapes.

The hex color #1B507D, also known as Chathams Blue, presents several accessibility considerations for web developers. Its relatively dark hue means that it requires careful selection of foreground text colors to ensure sufficient contrast. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. White or very light shades of yellow or green would likely provide adequate contrast against this background. When used for interactive elements such as buttons or links, hover and focus states must also maintain sufficient contrast to ensure usability for all users, including those with visual impairments. Ensuring proper color contrast is crucial for readability and overall accessibility, enhancing the user experience for individuals with low vision or color blindness. Additionally, avoid using color alone to convey important information; supplement color cues with text labels or icons.

Shades

Digital Color Formats

RGB
27 80 125
RGB27 80 125
Red
Green
Blue
HSL
207.55deg 64.47% 29.8%
207.5564.4729.8HSL
Hue
Saturation
Lightness
HWB
207.55deg 10.59% 50.98%
207.5510.5950.98HWB
Hue
Whiteness
Blackness
hex#1B507D
rgb27 80 125
hsl207.55deg 64.47% 29.8%
cmyk78.4% 36% 0% 50.98%
hwb207.55deg 10.59% 50.98%
xyz-d650.07 0.07 0.2
oklch0.4198 0.0933 248.03
oklab0.4198 -0.03 -0.09
CMYK
78.4% 36% 0% 50.98%
78.436050.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.2
0.070.070.2XYZ
X
Y
Z
OKLCH
0.4198 0.0933 248.03
0.41980.0933248.03LCH
Lightness
Chroma
Hue
OKLAB
0.4198 -0.03 -0.09
0.4198-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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