Chathams Blue

#1C4D7C

General Information about Chathams Blue

The hexadecimal color #1C4D7C, also known as Chathams Blue, is a dark and muted shade of blue. It is composed of 11% red, 30.2% green, and 48.6% blue. In the RGB color model, #1C4D7C consists of 110 red, 205 green, and 124 blue. In the CMYK color model, if represents 77% cyan, 38% magenta, 0% yellow and 51% black. Its hue angle is 210.3 degrees, its saturation is 62.5%, and its lightness is 29.8%. Chathams Blue evokes a sense of calmness, serenity, and sophistication. This color name is originated from a group of islands located about 800 kilometers east of New Zealand. The islands are also referred to as Rēkohu or Wharekauri.

The color #1C4D7C, also known as Chathams Blue, presents some accessibility considerations for web developers. Its relatively dark hue means careful attention must be paid to contrast ratios, especially when used for text or interactive elements. According to WCAG guidelines, sufficient contrast between text and background is crucial for readability, particularly for users with visual impairments. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When using #1C4D7C as a background, ensure that text colors like white or light yellow are employed to meet these contrast requirements. Tools like contrast checkers can help in verifying compliance. Also, avoid using this color as the sole indicator for interactive elements; supplement it with other visual cues such as underlines or icons to ensure usability for all users, including those with color blindness.

Shades

Digital Color Formats

RGB
28 77 124
RGB28 77 124
Red
Green
Blue
HSL
209.38deg 63.16% 29.8%
209.3863.1629.8HSL
Hue
Saturation
Lightness
HWB
209.38deg 10.98% 51.37%
209.3810.9851.37HWB
Hue
Whiteness
Blackness
hex#1C4D7C
rgb28 77 124
hsl209.38deg 63.16% 29.8%
cmyk77.42% 37.9% 0% 51.37%
hwb209.38deg 10.98% 51.37%
xyz-d650.07 0.07 0.2
oklch0.412 0.0947 250.52
oklab0.412 -0.03 -0.09
CMYK
77.42% 37.9% 0% 51.37%
77.4237.9051.37CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.2
0.070.070.2XYZ
X
Y
Z
OKLCH
0.412 0.0947 250.52
0.4120.0947250.52LCH
Lightness
Chroma
Hue
OKLAB
0.412 -0.03 -0.09
0.412-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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