#66CDAA
mediumaquamarine
#66CDAA is the CSS named color "mediumaquamarine", an exact match. In RGB it breaks down to red 102, green 205, and blue 170 out of 255 each. In HSL terms that's a hue of 160°, 51% saturation, and 60% lightness: on the lighter side — readable as large or bold text on a dark background, but too pale for small body text on white.
Every format
| HEX | #66cdaa |
| RGB | rgb(102, 205, 170) |
| HSL | hsl(160° 51% 60%) |
| HSB | hsb(160° 50% 80%) |
| OKLCH | oklch(78% 0.110 169°) |
| OKLAB | oklab(78% -0.108 0.021) |
| LCH | lch(76% 38.6 168°) |
| CMYK | cmyk(50% 0% 17% 20%) |
Shades (darker)
#66cdaa · #51b997 · #3aa584 · #209272 · #007f60
Tints (lighter)
#66cdaa · #6ed4b1 · #75dcb8 · #7ce3bf · #84eac6
Shades mix #66CDAA toward black in even steps, useful for hover and pressed states in a UI; tints mix it toward white, useful for subtle backgrounds and disabled states that still read as the same color family.
On white: 1.93:1 — fails
On black: 10.88:1 — AAA
Frequently asked
- What is #66CDAA in RGB?
- #66CDAA is rgb(102, 205, 170) — red 102, green 205, blue 170 out of 255 each.
- Does #66CDAA pass WCAG contrast on a white background?
- It has a contrast ratio of 1.93:1 against white, which fails for normal text.
- What's a good background color to pair with #66CDAA?
- Black text or a black background gives better contrast (10.88:1) than white (1.93:1).