#66CB7D
Closest named color: Soft Green (#6FC276). oklch(76.2% 0.146 149.3), rgb(102, 203, 125).
Aa
Black text reads best on this color (10.40:1).
About this color
#66CB7D is a medium-light, vivid green. In OKLCH its lightness is 76%, its chroma 0.146 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.024 away. Black text reads best on it, at 10.40:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 10.40:1 |
| White text | 2.01:1 |
Values
| HEX | #66CB7D |
| RGB | rgb(102, 203, 125) |
| HSL | hsl(134, 49%, 60%) |
| OKLCH | oklch(76.2% 0.146 149.3) |
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 #66CB7D | 2.01:1 | Fails | Lc -43.4 | Non-text elements, placeholder text |
| Black text on #66CB7D | 10.40:1 | AAA | Lc 65.0 | Content text, not long reading |
| #66CB7D text on white | 2.01:1 | Fails | Lc 39.0 | Non-text elements, placeholder text |
| #66CB7D text on black | 10.40:1 | AAA | Lc -63.4 | 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
#EDF9EE
oklch(97% 0.019 147.9)
-
Step 100
100
#D7F2DB
oklch(93.5% 0.042 149.6)
-
Step 200
200
#B4E9BC
oklch(88.5% 0.082 149)
-
Step 300
300 (this color)
#66CB7D
oklch(76.2% 0.146 149.3)
-
Step 400
400
#00C155
oklch(70.8% 0.199 149.2)
-
Step 500
500
#00A548
oklch(63% 0.177 149.3)
-
Step 600
600
#008B3B
oklch(55.6% 0.156 149.2)
-
Step 700
700
#007531
oklch(49.1% 0.138 149.3)
-
Step 800
800
#006027
oklch(42.7% 0.12 149.3)
-
Step 900
900
#00501F
oklch(37.7% 0.106 149.2)
-
Step 950
950
#003010
oklch(27% 0.075 149.4)
#66CB7D 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) | #CCBC78 | 0.121 |
| Deuteranopia (no green cones) | #BEB382 | 0.118 |
| Tritanopia (no blue cones) | #52C8B7 | 0.081 |
| Achromatopsia (no color) | #B6B6B6 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66CB7D
#66CB7D
oklch(76.2% 0.146 149.3)
- #E48EDF
#E48EDF
oklch(76.2% 0.146 329)
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 #66CB7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.024
- Seaweed #18D17B ΔE 0.040
- Dark Mint #48C072 ΔE 0.042
- Greenblue #23C48B ΔE 0.048
- Emerald #06D6A0 ΔE 0.050
- Algae Green #21C36F ΔE 0.052
- Dark Mint Green #20C073 ΔE 0.056
- Medium Aquamarine #66CDAA ΔE 0.059
Use #66CB7D 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.