Chathams Blue

#1D4F7E

General Information About Chathams Blue

Chathams Blue, represented by the hexadecimal color code #1D4F7E, is a deep and muted shade of blue that evokes feelings of serenity, stability, and professionalism. It belongs to the blue color family and is often associated with trust, intelligence, and efficiency. In the RGB color model, it is composed of 11.4% red, 31% green, and 49.4% blue. The CMYK values are 77% cyan, 37% magenta, 0% yellow, and 51% black. This color is named after the Chathams Islands, a remote archipelago east of New Zealand. It's a versatile color suitable for various design applications, offering a balance between formality and approachability. Its relatively low saturation makes it easy on the eyes, making it suitable for backgrounds and text.

The color #1D4F7E, also known as Chathams Blue, presents moderate accessibility challenges. Its contrast ratio against white text is approximately 4.6:1, which meets WCAG AA standards for normal text but falls short of AAA standards. For larger text (14pt bold or 18pt regular), it meets AA standards. When used with black text, the contrast ratio is significantly lower, posing readability issues for users with visual impairments. To enhance accessibility, consider using a lighter shade of blue or a contrasting color like yellow or white for text and interactive elements. Ensuring sufficient contrast is crucial for users with low vision or color blindness, improving their ability to perceive and interact with content effectively. Careful consideration of color combinations and text sizes can significantly improve the usability of designs incorporating #1D4F7E.

Shades

Digital Color Formats

RGB
29 79 126
RGB29 79 126
Red
Green
Blue
HSL
209.07deg 62.58% 30.39%
209.0762.5830.39HSL
Hue
Saturation
Lightness
HWB
209.07deg 11.37% 50.59%
209.0711.3750.59HWB
Hue
Whiteness
Blackness
hex#1D4F7E
rgb29 79 126
hsl209.07deg 62.58% 30.39%
cmyk76.98% 37.3% 0% 50.59%
hwb209.07deg 11.37% 50.59%
xyz-d650.07 0.07 0.21
oklch0.4186 0.0949 250.06
oklab0.4186 -0.03 -0.09
CMYK
76.98% 37.3% 0% 50.59%
76.9837.3050.59CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.07 0.21
0.070.070.21XYZ
X
Y
Z
OKLCH
0.4186 0.0949 250.06
0.41860.0949250.06LCH
Lightness
Chroma
Hue
OKLAB
0.4186 -0.03 -0.09
0.4186-0.03-0.09LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons