Luminescent Blue Color – #a4dde9: Codes and Complete Breakdown
By
Published on
The Luminescent Blue color hex code is #a4dde9, and it is composed of 64% red, 87% green and 91% blue.
Luminescent Blue is a light, muted, and cool color at 30% saturation. It has a contrast ratio of 1.49:1 against a white background, which fails WCAG AA (Web Content Accessibility Guidelines, Level AA) compliance.
For better visibility, it is recommended to use the Luminescent Blue color (#a4dde9) against dark backgrounds.

Luminescent Blue Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#a4dde9
Luminescent Blue Color Codes and Information
Here’s a complete breakdown of the color Luminescent Blue, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #a4dde9 |
| RGB | rgb(164,221,233) |
| HSL | hsl(190,61.1%,77.8%) |
| CMYK | 30, 5, 0, 9 |
| HSV | 190, 30, 91 |
| RGB % | 64, 87, 91 |
| XYZ | 55.9, 65.5, 86.8 |
| LAB | 84.7, -15.3, -11.8 |
| Color Category | Light |
| Color Family | Blue |
| Saturation | 30% |
| Temperature | Cool |
| Contrast Ratio Againt White (#ffffff) | 1.49 (fails WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 14.1 (passes WCAG AA) |
Similar Colors to Luminescent Blue Color
#16b8f3

Zima Blue
#00308f

US Air Force Blue
#8093a4

Dusty Blue
#4169e1

Royal Blue
#dde0df

Barely Blue
#9bb3bc

Blue Shell
#cfe2ef

Weak Blue
#bedbed

Twin Blue









