Chathams Blue

#1D547B

General Information about Chathams Blue

Chathams Blue, represented by the hexadecimal color code #1D547B, is a dark shade of blue that evokes feelings of calmness, stability, and trustworthiness. This color is located in the blue-cyan hue range on the color wheel, leaning towards a slightly cooler tone. In the RGB color model, it is composed of 11.4% red, 33% green, and 48.2% blue. When represented in the CMYK color model, which is often used for printing purposes, Chathams Blue consists of 76% cyan, 32% magenta, 0% yellow, and 52% black. This indicates a strong presence of cyan pigment, contributing to its cool and somewhat muted appearance. It's a versatile color, suitable for various applications ranging from web design to interior decoration, often used where a sense of reliability and sophistication is desired.

The color #1D547B, also known as Chathams Blue, presents some accessibility challenges, particularly for users with visual impairments. Its relatively low lightness value (compared to a maximum of #FFFFFF) means that text rendered in this color may lack sufficient contrast against a white or light-colored background. This can make it difficult for users to read the text comfortably. Therefore, when using Chathams Blue for text or interactive elements, it's crucial to ensure a high contrast ratio. 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 a color contrast checker tool is highly advisable to verify that the combination of Chathams Blue and its background color meets these standards. Consider pairing it with lighter hues like yellows, creams, or very light blues to ensure readability and usability for all users. Additionally, avoid using this color as the sole indicator for interactive elements; provide supplementary cues like underlines or icons to improve accessibility for color-blind users.

Shades

Digital Color Formats

RGB
29 84 123
RGB29 84 123
Red
Green
Blue
HSL
204.89deg 61.84% 29.8%
204.8961.8429.8HSL
Hue
Saturation
Lightness
HWB
204.89deg 11.37% 51.76%
204.8911.3751.76HWB
Hue
Whiteness
Blackness
hex#1D547B
rgb29 84 123
hsl204.89deg 61.84% 29.8%
cmyk76.42% 31.71% 0% 51.76%
hwb204.89deg 11.37% 51.76%
xyz-d650.07 0.08 0.2
oklch0.4294 0.0862 243.51
oklab0.4294 -0.04 -0.08
CMYK
76.42% 31.71% 0% 51.76%
76.4231.71051.76CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.08 0.2
0.070.080.2XYZ
X
Y
Z
OKLCH
0.4294 0.0862 243.51
0.42940.0862243.51LCH
Lightness
Chroma
Hue
OKLAB
0.4294 -0.04 -0.08
0.4294-0.04-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons