#66DA94
Closest named color: Aqua Green (#12E193). oklch(80.3% 0.146 154.7), rgb(102, 218, 148).
Aa
Black text reads best on this color (12.02:1).
About this color
#66DA94 is a light, vivid green. In OKLCH its lightness is 80%, its chroma 0.146 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Green (#12E193), ΔE 0.038 away. Black text reads best on it, at 12.02:1.
| Hue family | Greens |
| Lightness | light (80%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Aqua Green (#12E193) |
| Black text | 12.02:1 |
| White text | 1.74:1 |
Values
| HEX | #66DA94 |
| RGB | rgb(102, 218, 148) |
| HSL | hsl(144, 61%, 63%) |
| OKLCH | oklch(80.3% 0.146 154.7) |
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 #66DA94 | 1.74:1 | Fails | Lc -35.5 | Non-text elements, placeholder text |
| Black text on #66DA94 | 12.02:1 | AAA | Lc 72.3 | Content text, not long reading |
| #66DA94 text on white | 1.74:1 | Fails | Lc 31.6 | Non-text elements, placeholder text |
| #66DA94 text on black | 12.02:1 | AAA | Lc -71.2 | 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
#ECFAF0
oklch(97.2% 0.02 154.9)
-
Step 100
100
#D5F3DE
oklch(93.7% 0.042 155)
-
Step 200
200
#AFEAC2
oklch(88.6% 0.081 154.8)
-
Step 300
300 (this color)
#66DA94
oklch(80.3% 0.146 154.7)
-
Step 400
400
#00BF6D
oklch(70.7% 0.176 154.8)
-
Step 500
500
#00A45D
oklch(63.1% 0.157 154.8)
-
Step 600
600
#008A4D
oklch(55.6% 0.138 154.7)
-
Step 700
700
#007440
oklch(49.1% 0.122 154.8)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#66DA94 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) | #DACB90 | 0.131 |
| Deuteranopia (no green cones) | #C9BF98 | 0.127 |
| Tritanopia (no blue cones) | #45D8C8 | 0.073 |
| Achromatopsia (no color) | #C4C4C4 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66DA94
#66DA94
oklch(80.3% 0.146 154.7)
- #F899E4
#F899E4
oklch(80.3% 0.146 335)
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 #66DA94, closest first.
No curated palette has a color within ΔE 0.04 of #66DA94.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Green #12E193 ΔE 0.038
- Emerald #06D6A0 ΔE 0.043
- Weird Green #3AE57F ΔE 0.053
- Aqua Marine #2EE8BB ΔE 0.053
- Medium Aquamarine #66CDAA ΔE 0.055
- Seaweed #18D17B ΔE 0.058
- Seafoam Blue #78D1B6 ΔE 0.063
- Soft Green #6FC276 ΔE 0.065
Use #66DA94 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.