Blue
Cerulean blue
Cerulean blue
#2A52BEClick to copy
Cerulean blue Parameter Conversion Table
More converters →HEX#2A52BECopy
RGBrgb(42, 82, 190)Copy
HSLhsl(224, 64%, 45%)Copy
HSV/HSBhsv(224, 78%, 75%)Copy
CMYKcmyk(78%, 57%, 0%, 25%)Copy
Cerulean blue Color Schemes
Complementary
#2A52BE
Click to copy#BE962A
Click to copyAnalogous
#2A9CBE
Click to copy#4C2ABE
Click to copySplit Complementary
#BE4C2A
Click to copy#9CBE2A
Click to copyMonochromatic
#2A52BE
Click to copy#7C93D2
Click to copy#C8D2EC
Click to copy#182E6A
Click to copy#050A17
Click to copy#000000
Click to copyCerulean blue WCAG Accessibility Contrast
WCAG Calculator →The contrast ratio of this color against common foreground/background colors (based on the WCAG 2.1 standard)
Sample text Aa
White background #FFFFFF
6.89 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Black background #000000
3.05 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Light gray background #F5F5F5
6.32 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Dark gray background #333333
1.83 : 1
AA NormalAA LargeAAA NormalAAA Large
Cerulean blue Shade Variants
Gradient Generator →Lighten with White Mixed with white for a lighter, softer color
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Darken with Black Mixed with black for a deeper, heavier color
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Muted / Morandi Mixed with gray and desaturated for a sophisticated muted tone
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Cerulean blue Color Introduction
Definition
Cerulean blue (HEX #2A52BE) has the RGB value rgb(42, 82, 190), the HSL value hsl(224°, 64%, 45%) and the CMYK print value cmyk(78%, 57%, 0%, 25%). In terms of color schemes, the complement of Cerulean blue is #BE962A, and placing the two side by side produces a striking, eye-catching contrast; paired with the analogous colors #2A9CBE and #4C2ABE that sit next to it on the color wheel, it transitions naturally and harmoniously; in a split-complementary scheme (#BE4C2A, #9CBE2A) it keeps its contrast tension without losing layering; and a monochromatic scheme built on Cerulean blue uses gradients of lightness and saturation to create a unified design with a strong sense of depth. Under the WCAG accessibility standard, Cerulean blue has a contrast ratio of 6.89:1 against white and 3.05:1 against black; paired with a white background it reaches AA, giving body text good readability.
Color Characteristics
Blue is the color of sky and ocean, evoking vastness, trust and reason. Steady and imposing, it is almost irreplaceable in technology, finance and corporate identity design. Specifically, Cerulean blue has a lightness of 45% and a saturation of 64%, striking and generous as a background or primary color, offering good readability with either light or dark text; moreover, its saturation is moderate, keeping the color’s emotional expression without becoming overly assertive. In a word: The color of the sky.
Color Psychology
Blue can evoke calm, focus and trust, with a marked stabilizing effect; psychologically it symbolizes reason, loyalty and depth. For this reason Cerulean blue tends to leave a first impression of being cool and reliable in the viewer’s mind, and this emotional tone also defines the role it plays in design.
Best Uses
Blue suits fintech, corporate websites, government systems and any scene that needs professional trust. In real projects, Cerulean blue is also often used as a dark background or heading text color; in “Blue”-themed designs, the adjacent colors or lightness gradients built around it quickly establish a cohesive, clearly layered color scheme.
Cerulean blue Featured In
This color is included in the following color cards and color families. Click a card to browse more colors in the corresponding collection.