#66DD94
Closest named color: Aqua Green (#12E193). oklch(81% 0.15 154.2), rgb(102, 221, 148).
Aa
Black text reads best on this color (12.33:1).
About this color
#66DD94 is a light, vivid green. In OKLCH its lightness is 81%, its chroma 0.150 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Green (#12E193), ΔE 0.035 away. Black text reads best on it, at 12.33:1.
| Hue family | Greens |
| Lightness | light (81%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Aqua Green (#12E193) |
| Black text | 12.33:1 |
| White text | 1.70:1 |
Values
| HEX | #66DD94 |
| RGB | rgb(102, 221, 148) |
| HSL | hsl(143, 64%, 63%) |
| OKLCH | oklch(81% 0.15 154.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #66DD94 | 1.70:1 | Fails | Lc -34.0 | Non-text elements, placeholder text |
| Black text on #66DD94 | 12.33:1 | AAA | Lc 73.6 | Content text, not long reading |
| #66DD94 text on white | 1.70:1 | Fails | Lc 30.2 | Non-text elements, placeholder text |
| #66DD94 text on black | 12.33:1 | AAA | Lc -72.6 | Content text, not long reading |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#ECFAEF
oklch(97.2% 0.021 152.2)
-
Step 100
100
#D4F3DD
oklch(93.6% 0.044 154.6)
-
Step 200
200
#AEEAC0
oklch(88.5% 0.084 153.9)
-
Step 300
300 (this color)
#66DD94
oklch(81% 0.15 154.2)
-
Step 400
400
#00BF6B
oklch(70.6% 0.177 154.2)
-
Step 500
500
#00A45B
oklch(63.1% 0.158 154.2)
-
Step 600
600
#008A4C
oklch(55.6% 0.139 154.3)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#005029
oklch(37.8% 0.096 153.9)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#66DD94 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #DDCD8F | 0.134 |
| Deuteranopia (no green cones) | #CCC299 | 0.130 |
| Tritanopia (no blue cones) | #44DBCA | 0.075 |
| Achromatopsia (no color) | #C6C6C6 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66DD94
#66DD94
oklch(81% 0.15 154.2)
- #FB9AE8
#FB9AE8
oklch(81% 0.15 334.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #66DD94, closest first.
No curated palette has a color within ΔE 0.04 of #66DD94.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Green #12E193 ΔE 0.035
- Weird Green #3AE57F ΔE 0.047
- Emerald #06D6A0 ΔE 0.048
- Aqua Marine #2EE8BB ΔE 0.050
- Seaweed #18D17B ΔE 0.062
- Medium Aquamarine #66CDAA ΔE 0.062
- Hospital Green #9BE5AA ΔE 0.063
- Light Green #90EE90 ΔE 0.064
Use #66DD94 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.