#66F1C6
Closest named color: Light Turquoise (#7EF4CC). oklch(87% 0.136 169.7), rgb(102, 241, 198).
Aa
Black text reads best on this color (14.96:1).
About this color
#66F1C6 is a light, moderately saturated green. In OKLCH its lightness is 87%, its chroma 0.136 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Turquoise (#7EF4CC), ΔE 0.022 away. Black text reads best on it, at 14.96:1.
| Hue family | Greens |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Light Turquoise (#7EF4CC) |
| Black text | 14.96:1 |
| White text | 1.40:1 |
Values
| HEX | #66F1C6 |
| RGB | rgb(102, 241, 198) |
| HSL | hsl(161, 83%, 67%) |
| OKLCH | oklch(87% 0.136 169.7) |
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 #66F1C6 | 1.40:1 | Fails | Lc -21.9 | Dividers and decoration only |
| Black text on #66F1C6 | 14.96:1 | AAA | Lc 84.5 | Fine for body text |
| #66F1C6 text on white | 1.40:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #66F1C6 text on black | 14.96:1 | AAA | Lc -84.2 | 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
#E7FBF3
oklch(97.1% 0.023 169.9)
-
Step 100
100
#CAF5E4
oklch(93.5% 0.05 169.3)
-
Step 200
200 (this color)
#66F1C6
oklch(87% 0.136 169.7)
-
Step 300
300
#00E1B0
oklch(80.9% 0.161 169.7)
-
Step 400
400
#00BC93
oklch(70.7% 0.14 169.9)
-
Step 500
500
#00A17D
oklch(63% 0.125 169.6)
-
Step 600
600
#008869
oklch(55.7% 0.111 169.5)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#66F1C6 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) | #EBE2C4 | 0.139 |
| Deuteranopia (no green cones) | #D7D4C9 | 0.133 |
| Tritanopia (no blue cones) | #00F2E5 | 0.048 |
| Achromatopsia (no color) | #DADADA | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66F1C6
#66F1C6
oklch(87% 0.136 169.7)
- #FFBEDC
#FFBEDC
oklch(86.9% 0.083 349.6)
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 #66F1C6, closest first.
No curated palette has a color within ΔE 0.04 of #66F1C6.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Turquoise #7EF4CC ΔE 0.022
- Bright Teal #01F9C6 ΔE 0.035
- Light Aquamarine #7BFDC7 ΔE 0.038
- Aqua Marine #2EE8BB ΔE 0.042
- Light Teal #90E4C1 ΔE 0.043
- Aquamarine #7FFFD4 ΔE 0.045
- Light Blue Green #7EFBB3 ΔE 0.046
- Seafoam #80F9AD ΔE 0.048
Use #66F1C6 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.