Aero Blue
HEX: #C9FFE5 | Modern Palette
Color Specifications
#C9FFE5
201, 255, 229
151°, 21% ,100%
21.18, 0, 10.2, 0
About Aero Blue
Aero Blue (#C9FFE5) is a color with RGB(201, 255, 229) and HSL(151.11°, 21.18%, 100%). In design, it fits Pastel, Cool styles and is suitable for Text, Background, Print. Its complementary color is #FFC9E3, which creates strong contrast. Its triadic palette includes #E5C9FF and #FFE5C9. The name comes from Aero Blue (English).
- HEX: #C9FFE5
- RGB: 201, 255, 229
- HSL: 151.11°, 21.18%, 100%
- Style: Pastel, Cool
- Use case: Text, Background, Print
- Complementary color: #FFC9E3
- Triadic colors: #E5C9FF, #FFE5C9
- The name comes from Aero Blue (English).
Live Components
Color Palettes
Color Harmonies
Complementary
The color directly opposite on the color wheel — creates maximum contrast and vibrance.
Analogous
Colors adjacent on the wheel — naturally harmonious and pleasing to the eye.
Triadic
Three colors equally spaced 120° apart — bold, balanced, and visually rich.
Split-Complementary
Two colors flanking the complement — high contrast with less tension than full complementary.
Tetradic (Square)
Four colors at 90° intervals — rich variety, best when one color dominates.
Monochromatic
Shades and tints of the same hue — cohesive, elegant, and easy to work with.
Shades & Tints
A seamless scale of #C9FFE5 from deepest shade to lightest tint.
Color Characteristics
Accessibility Simulation
#F1F1E6
#FAFAE5
#CDFCFC
#F3F3F3
Frequently Asked Questions
Name, History & Etymology
History
The term 'aero' itself comes from Greek 'aer' meaning 'air'. When combined with 'blue', it evokes a light, often desaturated blue, similar to a clear daytime sky or the color associated with aviation. It's a descriptive color name rather than one tied to a specific pigment discovery. Its popularity has waxed and waned, often appearing in spring/summer fashion collections, interior design for a calming effect, and sometimes in branding for products related to freshness, cleanliness, or technology. The specific hex code #c9ffe5 is a very light, almost minty pastel blue-green, leaning more towards a 'seafoam' or 'celadon' interpretation of 'aero blue' rather than a pure sky blue.
First Recorded Use
While specific 'first use' as a named color is hard to pinpoint without extensive historical color swatch research, the concept of 'aero' (referring to air/sky) combined with 'blue' would have emerged as color naming became more standardized, likely in the early 1900s with the rise of commercial paints, dyes, and fashion. It gained more prominence with color systems like those used in fashion and interior design.
Cultural Associations
Aero Blue, and similar light blues, are often associated with tranquility, peace, freshness, cleanliness, and spaciousness. In some contexts, it can also evoke a sense of technology or futurism (especially when paired with silver or white). The specific shade #c9ffe5, with its slight green tint, might also carry connotations of nature, growth, and health, blending the calming aspects of blue with the refreshing qualities of green.
Code Snippets
/* Background */
.element {
background-color: #C9FFE5;
}
/* Text */
.element {
color: #C9FFE5;
}
/* Border */
.element {
border: 1px solid #C9FFE5;
}/* Linear gradient to complementary */
.element {
background: linear-gradient(
to right,
#C9FFE5,
#FFFFFF
);
}
/* Radial gradient */
.element {
background: radial-gradient(
circle,
#C9FFE5,
#FFFFFF
);
}// SCSS variable
$aero-blue: #C9FFE5;
// With RGB channels (useful for rgba() usage)
$aero-blue-r: 201;
$aero-blue-g: 255;
$aero-blue-b: 229;
// Usage
.element {
background-color: $aero-blue;
color: rgba($aero-blue-r, $aero-blue-g, $aero-blue-b, 0.8);
}