#66EACE
Closest named color: Light Teal (#90E4C1). oklch(85.6% 0.123 177), rgb(102, 234, 206).
Aa
Black text reads best on this color (14.22:1).
About this color
#66EACE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.123 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Light Teal (#90E4C1), ΔE 0.035 away. Black text reads best on it, at 14.22:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Light Teal (#90E4C1) |
| Black text | 14.22:1 |
| White text | 1.47:1 |
Values
| HEX | #66EACE |
| RGB | rgb(102, 234, 206) |
| HSL | hsl(167, 76%, 66%) |
| OKLCH | oklch(85.6% 0.123 177) |
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 #66EACE | 1.47:1 | Fails | Lc -25.3 | Dividers and decoration only |
| Black text on #66EACE | 14.22:1 | AAA | Lc 81.5 | Fine for body text |
| #66EACE text on white | 1.47:1 | Fails | Lc 22.2 | Dividers and decoration only |
| #66EACE text on black | 14.22:1 | AAA | Lc -81.1 | 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
#E7FAF5
oklch(97% 0.021 178.4)
-
Step 100
100
#CBF5E9
oklch(93.7% 0.046 176.1)
-
Step 200
200 (this color)
#66EACE
oklch(85.6% 0.123 177)
-
Step 300
300
#00DFBF
oklch(80.8% 0.15 177.3)
-
Step 400
400
#00BB9F
oklch(70.8% 0.132 176.8)
-
Step 500
500
#00A088
oklch(63.1% 0.117 177)
-
Step 600
600
#008772
oklch(55.7% 0.104 176.6)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4E
oklch(42.8% 0.079 176.7)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#66EACE 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) | #E2DDCD | 0.130 |
| Deuteranopia (no green cones) | #CECED0 | 0.124 |
| Tritanopia (no blue cones) | #00EDE2 | 0.037 |
| Achromatopsia (no color) | #D4D4D4 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66EACE
#66EACE
oklch(85.6% 0.123 177)
- #FFB8D0
#FFB8D0
oklch(85.5% 0.087 357.1)
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 #66EACE, closest first.
No curated palette has a color within ΔE 0.04 of #66EACE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Teal #90E4C1 ΔE 0.035
- Light Turquoise #7EF4CC ΔE 0.036
- Turquoise #40E0D0 ΔE 0.039
- Aqua Marine #2EE8BB ΔE 0.041
- Bright Aqua #0BF9EA ΔE 0.048
- Bright Teal #01F9C6 ΔE 0.054
- Hospital Green #9BE5AA ΔE 0.056
- Light Aquamarine #7BFDC7 ΔE 0.060
Use #66EACE 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.