Cerulean Blue

#264CB0

General Information

The hexadecimal color #264CB0, also known as Cerulean Blue, is a captivating shade that resides in the blue color spectrum. It is created by mixing specific amounts of red, green, and blue light, with its RGB values being R:38, G:76, and B:176, respectively. The color's composition translates to a relatively low red and green presence and a prominent blue component, which gives it the cool, tranquil character. In the CMYK color model, which is typically used for printing, it consists of C:78, M:57, Y:0, and K:31. Cerulean Blue is often associated with feelings of calmness, serenity, and stability, making it a popular choice in various design applications. Its name is derived from the Latin word 'caeruleus', meaning 'dark blue' or 'sky blue'.

The color #264CB0, also known as Cerulean Blue, presents some accessibility challenges, particularly for users with visual impairments. Its relatively low luminance value of approximately 0.11 makes it difficult to achieve sufficient contrast against lighter backgrounds, potentially violating WCAG (Web Content Accessibility Guidelines) standards. When used as text, it's crucial to ensure a contrast ratio of at least 4.5:1 against the background color for normal text and 3:1 for large text (14pt bold or 18pt regular). Using a lighter text color like white or a very light gray would generally be inappropriate. Darker backgrounds tend to offer the best contrast for this blue. Also, avoid using this color alone to convey critical information; always supplement it with text or other visual cues to accommodate users with color blindness. When using this color in interactive elements, such as buttons or links, ensure sufficient contrast for hover and focus states as well, to provide clear visual feedback for all users, including those navigating with keyboard.

Shades

Digital Color Formats

RGB
38 76 176
RGB38 76 176
Red
Green
Blue
HSL
223.48deg 64.49% 41.96%
223.4864.4941.96HSL
Hue
Saturation
Lightness
HWB
223.48deg 14.9% 30.98%
223.4814.930.98HWB
Hue
Whiteness
Blackness
hex#264CB0
rgb38 76 176
hsl223.48deg 64.49% 41.96%
cmyk78.41% 56.82% 0% 30.98%
hwb223.48deg 14.9% 30.98%
xyz-d650.11 0.09 0.42
oklch0.4519 0.1656 264.74
oklab0.4519 -0.02 -0.16
CMYK
78.41% 56.82% 0% 30.98%
78.4156.82030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.09 0.42
0.110.090.42XYZ
X
Y
Z
OKLCH
0.4519 0.1656 264.74
0.45190.1656264.74LCH
Lightness
Chroma
Hue
OKLAB
0.4519 -0.02 -0.16
0.4519-0.02-0.16LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons