#66EBBE
Closest named color: Aqua Marine (#2EE8BB). oklch(85.4% 0.134 167.9), rgb(102, 235, 190).
Aa
Black text reads best on this color (14.19:1).
About this color
#66EBBE is a light, moderately saturated green. In OKLCH its lightness is 85%, its chroma 0.134 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.030 away. Black text reads best on it, at 14.19:1.
| Hue family | Greens |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 14.19:1 |
| White text | 1.47:1 |
Values
| HEX | #66EBBE |
| RGB | rgb(102, 235, 190) |
| HSL | hsl(160, 77%, 66%) |
| OKLCH | oklch(85.4% 0.134 167.9) |
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 #66EBBE | 1.47:1 | Fails | Lc -25.4 | Dividers and decoration only |
| Black text on #66EBBE | 14.19:1 | AAA | Lc 81.4 | Fine for body text |
| #66EBBE text on white | 1.47:1 | Fails | Lc 22.4 | Dividers and decoration only |
| #66EBBE text on black | 14.19:1 | AAA | Lc -80.9 | 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 200.
-
Step 50
50
#E8FBF2
oklch(97.2% 0.023 165.9)
-
Step 100
100
#CBF5E3
oklch(93.6% 0.05 167.4)
-
Step 200
200 (this color)
#66EBBE
oklch(85.4% 0.134 167.9)
-
Step 300
300
#00E1AC
oklch(80.8% 0.163 168.1)
-
Step 400
400
#00BC8F
oklch(70.6% 0.143 168)
-
Step 500
500
#00A17A
oklch(63% 0.128 168)
-
Step 600
600
#008866
oklch(55.6% 0.113 167.6)
-
Step 700
700
#007256
oklch(49% 0.099 168.4)
-
Step 800
800
#005E46
oklch(42.8% 0.087 168)
-
Step 900
900
#004E3A
oklch(37.7% 0.076 168.5)
-
Step 950
950
#002F21
oklch(27.1% 0.055 167.3)
#66EBBE 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) | #E6DDBC | 0.136 |
| Deuteranopia (no green cones) | #D2CEC1 | 0.131 |
| Tritanopia (no blue cones) | #1BECDE | 0.048 |
| Achromatopsia (no color) | #D4D4D4 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66EBBE
#66EBBE
oklch(85.4% 0.134 167.9)
- #FFB5DA
#FFB5DA
oklch(85.3% 0.097 347.9)
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 #66EBBE, closest first.
No curated palette has a color within ΔE 0.04 of #66EBBE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.030
- Light Turquoise #7EF4CC ΔE 0.036
- Light Teal #90E4C1 ΔE 0.039
- Bright Teal #01F9C6 ΔE 0.043
- Hospital Green #9BE5AA ΔE 0.045
- Turquoise #40E0D0 ΔE 0.051
- Light Aquamarine #7BFDC7 ΔE 0.053
- Seafoam #80F9AD ΔE 0.055
Use #66EBBE 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.