#66EEE2
Closest named color: Bright Aqua (#0BF9EA). oklch(87.1% 0.12 187.3), rgb(102, 238, 226).
Aa
Black text reads best on this color (14.89:1).
About this color
#66EEE2 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.120 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.037 away. Black text reads best on it, at 14.89:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 14.89:1 |
| White text | 1.41:1 |
Values
| HEX | #66EEE2 |
| RGB | rgb(102, 238, 226) |
| HSL | hsl(175, 80%, 67%) |
| OKLCH | oklch(87.1% 0.12 187.3) |
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 #66EEE2 | 1.41:1 | Fails | Lc -22.3 | Dividers and decoration only |
| Black text on #66EEE2 | 14.89:1 | AAA | Lc 84.2 | Fine for body text |
| #66EEE2 text on white | 1.41:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #66EEE2 text on black | 14.89:1 | AAA | Lc -83.9 | 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
#E7FAF8
oklch(97.1% 0.02 189.2)
-
Step 100
100
#C9F4EF
oklch(93.6% 0.045 187.8)
-
Step 200
200 (this color)
#66EEE2
oklch(87.1% 0.12 187.3)
-
Step 300
300
#00DDD0
oklch(80.8% 0.141 187.3)
-
Step 400
400
#00B9AE
oklch(70.8% 0.123 187.3)
-
Step 500
500
#009E95
oklch(63% 0.11 187.7)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D48
oklch(37.8% 0.066 187.3)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#66EEE2 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) | #E3E2E2 | 0.128 |
| Deuteranopia (no green cones) | #CDD3E4 | 0.119 |
| Tritanopia (no blue cones) | #00F3EA | 0.031 |
| Achromatopsia (no color) | #D9D9D9 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66EEE2
#66EEE2
oklch(87.1% 0.12 187.3)
- #FFC2CC
#FFC2CC
oklch(87.2% 0.071 7.7)
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 #66EEE2, closest first.
No curated palette has a color within ΔE 0.04 of #66EEE2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.037
- Robin's Egg #6DEDFD ΔE 0.040
- Bright Light Blue #26F7FD ΔE 0.040
- Light Turquoise #7EF4CC ΔE 0.042
- Bright Cyan #41FDFE ΔE 0.046
- Bright Turquoise #0FFEF9 ΔE 0.047
- Light Teal #90E4C1 ΔE 0.049
- Turquoise #40E0D0 ΔE 0.050
Use #66EEE2 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.