#66E2A2
Closest named color: Aqua Marine (#2EE8BB). oklch(82.5% 0.145 158.3), rgb(102, 226, 162).
Aa
Black text reads best on this color (12.96:1).
About this color
#66E2A2 is a light, vivid green. In OKLCH its lightness is 83%, its chroma 0.145 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.036 away. Black text reads best on it, at 12.96:1.
| Hue family | Greens |
| Lightness | light (83%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 12.96:1 |
| White text | 1.61:1 |
Values
| HEX | #66E2A2 |
| RGB | rgb(102, 226, 162) |
| HSL | hsl(149, 68%, 64%) |
| OKLCH | oklch(82.5% 0.145 158.3) |
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 #66E2A2 | 1.61:1 | Fails | Lc -31.0 | Non-text elements, placeholder text |
| Black text on #66E2A2 | 12.96:1 | AAA | Lc 76.3 | Fine for body text |
| #66E2A2 text on white | 1.61:1 | Fails | Lc 27.5 | Dividers and decoration only |
| #66E2A2 text on black | 12.96:1 | AAA | Lc -75.5 | Fine for body text |
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
#EBFAF1
oklch(97.2% 0.02 159.8)
-
Step 100
100
#D4F3E0
oklch(93.7% 0.041 158.6)
-
Step 200
200
#ACEAC5
oklch(88.5% 0.081 158.1)
-
Step 300
300 (this color)
#66E2A2
oklch(82.5% 0.145 158.3)
-
Step 400
400
#00BE78
oklch(70.6% 0.164 158.2)
-
Step 500
500
#00A367
oklch(63% 0.146 158.5)
-
Step 600
600
#008956
oklch(55.5% 0.129 158.6)
-
Step 700
700
#007447
oklch(49.2% 0.115 158)
-
Step 800
800
#005F3A
oklch(42.8% 0.099 158.5)
-
Step 900
900
#004F2F
oklch(37.7% 0.088 158.2)
-
Step 950
950
#002F1A
oklch(26.9% 0.063 158.2)
#66E2A2 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) | #E0D39E | 0.134 |
| Deuteranopia (no green cones) | #CFC6A6 | 0.132 |
| Tritanopia (no blue cones) | #3BE1D1 | 0.066 |
| Achromatopsia (no color) | #CBCBCB | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66E2A2
#66E2A2
oklch(82.5% 0.145 158.3)
- #FFA2E4
#FFA2E4
oklch(82.5% 0.136 338.3)
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 #66E2A2, closest first.
No curated palette has a color within ΔE 0.04 of #66E2A2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.036
- Aqua Green #12E193 ΔE 0.044
- Hospital Green #9BE5AA ΔE 0.051
- Emerald #06D6A0 ΔE 0.055
- Weird Green #3AE57F ΔE 0.057
- Light Green #90EE90 ΔE 0.058
- Light Teal #90E4C1 ΔE 0.059
- Seafoam Blue #78D1B6 ΔE 0.064
Use #66E2A2 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.