Smoke Blue Color – #6688bb: Codes and Complete Breakdown
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The Smoke Blue color hex code is #6688bb, and it is composed of 40% red, 53% green and 73% blue.
Smoke Blue is a light, muted, and cool color at 45% saturation. It has a contrast ratio of 3.62:1 against a white background, which fails WCAG AA (Web Content Accessibility Guidelines, Level AA) compliance.
For better visibility, it is recommended to use the Smoke Blue color (#6688bb) against dark backgrounds.

Smoke Blue Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#6688bb
Smoke Blue Color Codes and Information
Here’s a complete breakdown of the color Smoke Blue, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #6688bb |
| RGB | rgb(102,136,187) |
| HSL | hsl(216,38.5%,56.7%) |
| CMYK | 45, 27, 0, 27 |
| HSV | 216, 45, 73 |
| RGB % | 40, 53, 73 |
| XYZ | 23.3, 24, 50.4 |
| LAB | 56.1, 2.2, -30.4 |
| Color Category | Light |
| Color Family | Blue |
| Saturation | 45% |
| Temperature | Cool |
| Contrast Ratio Againt White (#ffffff) | 3.62 (fails WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 5.8 (passes WCAG AA) |
Similar Colors to Smoke 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
#004d67

Work Blue









