#66E7AE
Closest named color: Aqua Marine (#2EE8BB). oklch(84% 0.141 161.9), rgb(102, 231, 174).
Aa
Black text reads best on this color (13.60:1).
About this color
#66E7AE is a light, vivid green. In OKLCH its lightness is 84%, its chroma 0.141 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.028 away. Black text reads best on it, at 13.60:1.
| Hue family | Greens |
| Lightness | light (84%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 13.60:1 |
| White text | 1.54:1 |
Values
| HEX | #66E7AE |
| RGB | rgb(102, 231, 174) |
| HSL | hsl(153, 73%, 65%) |
| OKLCH | oklch(84% 0.141 161.9) |
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 #66E7AE | 1.54:1 | Fails | Lc -28.1 | Dividers and decoration only |
| Black text on #66E7AE | 13.60:1 | AAA | Lc 79.0 | Fine for body text |
| #66E7AE text on white | 1.54:1 | Fails | Lc 24.8 | Dividers and decoration only |
| #66E7AE text on black | 13.60:1 | AAA | Lc -78.4 | 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
#EBFAF2
oklch(97.2% 0.019 162.9)
-
Step 100
100
#D3F3E2
oklch(93.6% 0.04 162.4)
-
Step 200
200
#AAEAC9
oklch(88.5% 0.079 161.8)
-
Step 300
300 (this color)
#66E7AE
oklch(84% 0.141 161.9)
-
Step 400
400
#00BE82
oklch(70.8% 0.156 161.8)
-
Step 500
500
#00A36F
oklch(63.2% 0.139 161.8)
-
Step 600
600
#00895D
oklch(55.7% 0.122 162)
-
Step 700
700
#00734D
oklch(49.1% 0.108 161.8)
-
Step 800
800
#005E3F
oklch(42.6% 0.093 162.3)
-
Step 900
900
#004F34
oklch(37.8% 0.083 162.1)
-
Step 950
950
#002F1D
oklch(27% 0.059 161.7)
#66E7AE 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) | #E4D8AB | 0.136 |
| Deuteranopia (no green cones) | #D1CBB2 | 0.131 |
| Tritanopia (no blue cones) | #30E7D7 | 0.058 |
| Achromatopsia (no color) | #D0D0D0 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66E7AE
#66E7AE
oklch(84% 0.141 161.9)
- #FFACE0
#FFACE0
oklch(84% 0.116 341.8)
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 #66E7AE, closest first.
No curated palette has a color within ΔE 0.04 of #66E7AE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.028
- Hospital Green #9BE5AA ΔE 0.044
- Light Teal #90E4C1 ΔE 0.048
- Bright Teal #01F9C6 ΔE 0.051
- Light Turquoise #7EF4CC ΔE 0.053
- Aqua Green #12E193 ΔE 0.056
- Seafoam Green #7AF9AB ΔE 0.056
- Light Green #90EE90 ΔE 0.056
Use #66E7AE 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.