Cerulean Blue

#2745BF

About Cerulean Blue

Cerulean Blue, represented by the hex code #2745BF, is a captivating shade of blue that evokes a sense of calmness and serenity. It's often associated with the sky and the ocean, making it a popular choice for designs aiming to convey tranquility or stability. This color is created by mixing specific proportions of red, green, and blue light. In the RGB color model, #2745BF consists of 15.3% red, 27.1% green, and 74.9% blue. It falls within the blue-violet spectrum, leaning more towards the blue side. Cerulean Blue has a rich history and has been used in art, design, and fashion for centuries due to its visual appeal and versatility. Its properties make it a popular color for various design purposes.

The hex color #2745bf, also known as Cerulean Blue, presents some accessibility challenges, particularly in text applications. Its relatively low luminance requires careful consideration of contrast ratios when used as a text color against backgrounds. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. When pairing #2745bf with lighter backgrounds, it's crucial to ensure sufficient contrast to meet these standards. Using a color contrast checker is advisable to verify compliance. Additionally, avoid using this color as the sole means of conveying important information, as individuals with color vision deficiencies may struggle to distinguish it from similar hues. Providing supplementary cues, such as text labels or icons, is a best practice for ensuring inclusivity.

Shades

Digital Color Formats

RGB
39 69 191
RGB39 69 191
Red
Green
Blue
HSL
228.16deg 66.09% 45.1%
228.1666.0945.1HSL
Hue
Saturation
Lightness
HWB
228.16deg 15.29% 25.1%
228.1615.2925.1HWB
Hue
Whiteness
Blackness
hex#2745BF
rgb39 69 191
hsl228.16deg 66.09% 45.1%
cmyk79.58% 63.87% 0% 25.1%
hwb228.16deg 15.29% 25.1%
xyz-d650.12 0.08 0.5
oklch0.452 0.1937 267.1
oklab0.452 -0.01 -0.19
CMYK
79.58% 63.87% 0% 25.1%
79.5863.87025.1CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.12 0.08 0.5
0.120.080.5XYZ
X
Y
Z
OKLCH
0.452 0.1937 267.1
0.4520.1937267.1LCH
Lightness
Chroma
Hue
OKLAB
0.452 -0.01 -0.19
0.452-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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