#66ddaa - Medium Aquamarine color

This bright seafoam green blends clear aquamarine with a hint of mint, producing a lively yet soothing tone. It reads fresh and energetic—equal parts tropical water and leafy spring—making it well suited for modern branding, user-interface accents, and lifestyle packaging. Its medium-light value and moderate saturation keep it readable against white or charcoal while pairing beautifully with coral, peach, navy, or warm gray. The color feels youthful, optimistic, and calming without being pastel-soft.

color #66ddaa

#66ddaa color RGB value is 102, 221, 170, and the CMYK value is 0.538, 0.00, 0.231, 0.133. Alternative names for that color are: medium aquamarine, turquoise, mediumaquamarine, shamrock, green.

Color Conversion

Name
Values
CSS
RGB(0-255)
102, 221, 170
rgb(102, 221, 170)
CMYK
0.538, 0.00, 0.231, 0.133
-
sRGB
0.400, 0.867, 0.667
rgb(40% 86.7% 66.7%)
Adobe® 98 RGB compatible
0.579, 0.863, 0.671
color(a98-rgb 0.579 0.863 0.671)
HCT
166, 50.5, 80.4
color(--hct 166 34.8% 80.4%)
HSL
154, 63.6, 63.3
hsl(154 63.6% 63.3%)
HSV
154, 53.8, 86.7
color(--hsv 154 53.8% 86.7%)
HWB
154, 40.0, 13.3
hwb(154 40% 13.3%)
Lab
80.3, -44.1, 14.5
lab(80.3 -44.1 14.5)
P3
0.525, 0.856, 0.680
color(display-p3 0.525 0.856 0.68)
XYZ D50
0.394, 0.572, 0.359
color(xyz-d50 0.394 0.572 0.359)

Shades

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Tints

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Tones

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Color Harmonies

HEX:#66ddaa
RGB:102 221 170
HSL:154.29deg 63.64% 63.33%
HEX:#dd6699
RGB:221 102 153
HSL:334.29deg 63.64% 63.33%

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