#66DF84
Closest named color: Weird Green (#3AE57F). oklch(81.2% 0.168 149.4), rgb(102, 223, 132).
Aa
Black text reads best on this color (12.45:1).
About this color
#66DF84 is a light, vivid green. In OKLCH its lightness is 81%, its chroma 0.168 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Weird Green (#3AE57F), ΔE 0.030 away. Black text reads best on it, at 12.45:1.
| Hue family | Greens |
| Lightness | light (81%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Weird Green (#3AE57F) |
| Black text | 12.45:1 |
| White text | 1.68:1 |
Values
| HEX | #66DF84 |
| RGB | rgb(102, 223, 132) |
| HSL | hsl(135, 65%, 64%) |
| OKLCH | oklch(81.2% 0.168 149.4) |
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 #66DF84 | 1.68:1 | Fails | Lc -33.4 | Non-text elements, placeholder text |
| Black text on #66DF84 | 12.45:1 | AAA | Lc 74.2 | Content text, not long reading |
| #66DF84 text on white | 1.68:1 | Fails | Lc 29.6 | Dividers and decoration only |
| #66DF84 text on black | 12.45:1 | AAA | Lc -73.2 | 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
#ECFAEE
oklch(97.1% 0.022 149.7)
-
Step 100
100
#D4F4D9
oklch(93.7% 0.049 149.7)
-
Step 200
200
#AEEBB8
oklch(88.5% 0.093 149.2)
-
Step 300
300 (this color)
#66DF84
oklch(81.2% 0.168 149.4)
-
Step 400
400
#00C156
oklch(70.8% 0.198 149.4)
-
Step 500
500
#00A549
oklch(63.1% 0.176 149.5)
-
Step 600
600
#008B3C
oklch(55.6% 0.155 149.4)
-
Step 700
700
#007531
oklch(49.1% 0.138 149.3)
-
Step 800
800
#006027
oklch(42.7% 0.12 149.3)
-
Step 900
900
#00501F
oklch(37.7% 0.106 149.2)
-
Step 950
950
#003010
oklch(27% 0.075 149.4)
#66DF84 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) | #E1CE7D | 0.139 |
| Deuteranopia (no green cones) | #D0C38A | 0.136 |
| Tritanopia (no blue cones) | #4ADBC9 | 0.095 |
| Achromatopsia (no color) | #C7C7C7 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66DF84
#66DF84
oklch(81.2% 0.168 149.4)
- #FC97F6
#FC97F6
oklch(81.2% 0.168 329.1)
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 #66DF84, closest first.
No curated palette has a color within ΔE 0.04 of #66DF84.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Weird Green #3AE57F ΔE 0.030
- Aqua Green #12E193 ΔE 0.034
- Fresh Green #69D84F ΔE 0.052
- Seaweed #18D17B ΔE 0.059
- Light Green #90EE90 ΔE 0.059
- Emerald #06D6A0 ΔE 0.060
- Turquoise Green #04F489 ΔE 0.061
- Aqua Marine #2EE8BB ΔE 0.066
Use #66DF84 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.