#66D795
Closest named color: Emerald (#06D6A0). oklch(79.6% 0.141 155.6), rgb(102, 215, 149).
Aa
Black text reads best on this color (11.71:1).
About this color
#66D795 is a light, vivid green. In OKLCH its lightness is 80%, its chroma 0.141 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.039 away. Black text reads best on it, at 11.71:1.
| Hue family | Greens |
| Lightness | light (80%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 11.71:1 |
| White text | 1.79:1 |
Values
| HEX | #66D795 |
| RGB | rgb(102, 215, 149) |
| HSL | hsl(145, 59%, 62%) |
| OKLCH | oklch(79.6% 0.141 155.6) |
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 #66D795 | 1.79:1 | Fails | Lc -36.9 | Non-text elements, placeholder text |
| Black text on #66D795 | 11.71:1 | AAA | Lc 70.9 | Content text, not long reading |
| #66D795 text on white | 1.79:1 | Fails | Lc 32.9 | Non-text elements, placeholder text |
| #66D795 text on black | 11.71:1 | AAA | Lc -69.7 | Content text, not long reading |
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
#ECF9F0
oklch(97% 0.018 155.8)
-
Step 100
100
#D5F3DE
oklch(93.7% 0.042 155)
-
Step 200
200
#B0E9C3
oklch(88.5% 0.078 155.3)
-
Step 300
300 (this color)
#66D795
oklch(79.6% 0.141 155.6)
-
Step 400
400
#00BF70
oklch(70.7% 0.173 155.6)
-
Step 500
500
#00A45F
oklch(63.2% 0.155 155.5)
-
Step 600
600
#008A4F
oklch(55.7% 0.136 155.4)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#003018
oklch(27.2% 0.067 155.5)
#66D795 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) | #D6C891 | 0.127 |
| Deuteranopia (no green cones) | #C6BD99 | 0.124 |
| Tritanopia (no blue cones) | #46D5C6 | 0.069 |
| Achromatopsia (no color) | #C1C1C1 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66D795
#66D795
oklch(79.6% 0.141 155.6)
- #F498DF
#F498DF
oklch(79.5% 0.141 335.7)
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 #66D795, closest first.
No curated palette has a color within ΔE 0.04 of #66D795.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.039
- Aqua Green #12E193 ΔE 0.043
- Medium Aquamarine #66CDAA ΔE 0.046
- Aqua Marine #2EE8BB ΔE 0.056
- Seaweed #18D17B ΔE 0.057
- Seafoam Blue #78D1B6 ΔE 0.057
- Soft Green #6FC276 ΔE 0.059
- Weird Green #3AE57F ΔE 0.060
Use #66D795 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.