Deep Cerulean

#00819B

General Information about Deep Cerulean

The color #00819B, also known as Deep Cerulean, is a shade of cyan with moderate saturation and luminance. Its hexadecimal value is #00819B, which translates to 0 red, 129 green, and 155 blue in the RGB color model. In the CMYK color model, it is composed of approximately 100% cyan, 17% magenta, 0% yellow, and 39% black. This color is often associated with feelings of calmness, serenity, and trustworthiness. It is commonly used in designs that aim to convey stability and professionalism. Deep Cerulean lies within the blue-green spectrum, making it versatile for various design applications, from digital interfaces to branding materials.

The hex color #00819B, a shade of deep cerulean, presents both opportunities and challenges in terms of accessibility. Its moderate luminance requires careful consideration of foreground text and interactive elements. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text to meet WCAG AA standards. When used for backgrounds, pairing it with white or very light-colored text may not provide sufficient contrast for users with visual impairments. Conversely, using very dark text might create readability issues for some. Designers should use contrast checking tools to ensure compliance. Also, avoid using this color as the sole indicator of interactive elements; supplement with labels or other visual cues. Careful use of this color in combination with appropriate contrast and supplementary indicators, will result in a more inclusive design for all users.

Shades

Digital Color Formats

RGB
0 129 155
RGB0 129 155
Red
Green
Blue
HSL
190.06deg 100% 30.39%
190.0610030.39HSL
Hue
Saturation
Lightness
HWB
190.06deg 0% 39.22%
190.06039.22HWB
Hue
Whiteness
Blackness
hex#00819B
rgb0 129 155
hsl190.06deg 100% 30.39%
cmyk100% 16.77% 0% 39.22%
hwb190.06deg 0% 39.22%
xyz-d650.14 0.18 0.34
oklch0.5571 0.1005 218.58
oklab0.5571 -0.08 -0.06
CMYK
100% 16.77% 0% 39.22%
10016.77039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.14 0.18 0.34
0.140.180.34XYZ
X
Y
Z
OKLCH
0.5571 0.1005 218.58
0.55710.1005218.58LCH
Lightness
Chroma
Hue
OKLAB
0.5571 -0.08 -0.06
0.5571-0.08-0.06LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons