Chathams Blue

#184D83

General Information

The hexadecimal color code #184D83 represents a dark shade of blue, often referred to as "Chathams Blue". In the RGB color model, it is composed of 9.41% red, 30.2% green, and 51.37% blue. When expressed in the CMYK color model, it consists of 82% cyan, 41% magenta, 0% yellow, and 49% black. This color is commonly associated with feelings of calmness, stability, and depth. It is frequently used in corporate branding and website design to convey trust and professionalism. The color's hex triplet is 184D83, indicating the intensity of the red, green, and blue components. Chathams Blue is part of the blue color family and has a relatively low saturation and brightness, contributing to its muted and sophisticated appearance. Its wavelength falls within the blue spectrum of visible light.

The color #184D83, also known as Chathams Blue, presents some accessibility challenges, particularly when used as text on a white background. Its relatively low lightness value (approximately 0.28) results in a contrast ratio of around 3:1, which falls short of the WCAG recommended minimum of 4.5:1 for normal text and 3:1 for large text (14pt bold or 18pt regular). This means that individuals with visual impairments may find it difficult to read text displayed in this color. To improve accessibility, consider using a lighter shade of blue or pairing it with a light background color to enhance contrast. Using this color for decorative elements or larger graphical elements is generally acceptable, as the contrast requirements are less stringent in these cases. Always test color combinations with accessibility tools to ensure compliance with WCAG guidelines.

Shades

Digital Color Formats

RGB
24 77 131
RGB24 77 131
Red
Green
Blue
HSL
210.28deg 69.03% 30.39%
210.2869.0330.39HSL
Hue
Saturation
Lightness
HWB
210.28deg 9.41% 48.63%
210.289.4148.63HWB
Hue
Whiteness
Blackness
hex#184D83
rgb24 77 131
hsl210.28deg 69.03% 30.39%
cmyk81.68% 41.22% 0% 48.63%
hwb210.28deg 9.41% 48.63%
xyz-d650.07 0.07 0.22
oklch0.4153 0.1057 252.33
oklab0.4153 -0.03 -0.1
CMYK
81.68% 41.22% 0% 48.63%
81.6841.22048.63CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.22
0.070.070.22XYZ
X
Y
Z
OKLCH
0.4153 0.1057 252.33
0.41530.1057252.33LCH
Lightness
Chroma
Hue
OKLAB
0.4153 -0.03 -0.1
0.4153-0.03-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons