Cerulean Blue

#234DB3

General Information about Cerulean Blue

The hexadecimal color code #234DB3 represents a shade of cerulean blue, characterized by its vibrant and calming qualities. In the RGB color model, this color is composed of 13.73% red, 30.2% green, and 70.2% blue. Its CMYK equivalent is approximately 80% cyan, 57% magenta, 0% yellow, and 30% black. Cerulean blue derives its name from the Latin word "caeruleus," which means "dark blue" or "sky blue." It's often associated with feelings of tranquility, serenity, and openness. The color's hex code provides a precise way to represent and reproduce it across various digital platforms, ensuring consistency in its appearance.

The color #234DB3, a shade of cerulean blue, presents some accessibility considerations, especially for web design. Its moderate luminance requires careful pairing with text colors to ensure sufficient contrast for readability. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text. When using #234DB3 as a background, it's advisable to use light-colored text like white or a very pale yellow to meet these contrast requirements. Conversely, if it is used for text, a very dark background color is necessary. Tools like contrast checkers can assist in verifying compliance. Additionally, consider users with color vision deficiencies; avoid relying solely on color to convey important information, and provide alternative cues such as text labels or icons. Thoughtful implementation ensures inclusivity and a better user experience.

Shades

Digital Color Formats

RGB
35 77 179
RGB35 77 179
Red
Green
Blue
HSL
222.5deg 67.29% 41.96%
222.567.2941.96HSL
Hue
Saturation
Lightness
HWB
222.5deg 13.73% 29.8%
222.513.7329.8HWB
Hue
Whiteness
Blackness
hex#234DB3
rgb35 77 179
hsl222.5deg 67.29% 41.96%
cmyk80.45% 56.98% 0% 29.8%
hwb222.5deg 13.73% 29.8%
xyz-d650.11 0.09 0.44
oklch0.4554 0.1692 263.94
oklab0.4554 -0.02 -0.17
CMYK
80.45% 56.98% 0% 29.8%
80.4556.98029.8CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.09 0.44
0.110.090.44XYZ
X
Y
Z
OKLCH
0.4554 0.1692 263.94
0.45540.1692263.94LCH
Lightness
Chroma
Hue
OKLAB
0.4554 -0.02 -0.17
0.4554-0.02-0.17LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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