#66C560
Closest named color: Soft Green (#6FC276). oklch(74.2% 0.165 142.6), rgb(102, 197, 96).
Aa
Black text reads best on this color (9.72:1).
About this color
#66C560 is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.165 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.032 away. Black text reads best on it, at 9.72:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.72:1 |
| White text | 2.16:1 |
Values
| HEX | #66C560 |
| RGB | rgb(102, 197, 96) |
| HSL | hsl(116, 47%, 57%) |
| OKLCH | oklch(74.2% 0.165 142.6) |
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 #66C560 | 2.16:1 | Fails | Lc -46.9 | Large or bold text, headings |
| Black text on #66C560 | 9.72:1 | AAA | Lc 61.7 | Content text, not long reading |
| #66C560 text on white | 2.16:1 | Fails | Lc 42.2 | Non-text elements, placeholder text |
| #66C560 text on black | 9.72:1 | AAA | Lc -60.0 | 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 400.
-
Step 50
50
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DFEFDD
oklch(93.5% 0.029 142.2)
-
Step 200
200
#C4E3C1
oklch(88.4% 0.056 142.7)
-
Step 300
300
#99D294
oklch(80.9% 0.104 142.6)
-
Step 400
400 (this color)
#66C560
oklch(74.2% 0.165 142.6)
-
Step 500
500
#0AA70B
oklch(63.2% 0.212 142.6)
-
Step 600
600
#008C02
oklch(55.5% 0.188 142.6)
-
Step 700
700
#007601
oklch(49% 0.166 142.6)
-
Step 800
800
#006101
oklch(42.7% 0.145 142.6)
-
Step 900
900
#005101
oklch(37.7% 0.128 142.6)
-
Step 950
950
#033003
oklch(26.9% 0.086 142.7)
#66C560 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) | #C9B657 | 0.120 |
| Deuteranopia (no green cones) | #BCAD67 | 0.120 |
| Tritanopia (no blue cones) | #5AC0AE | 0.106 |
| Achromatopsia (no color) | #B0B0B0 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66C560
#66C560
oklch(74.2% 0.165 142.6)
- #DC84E8
#DC84E8
oklch(74.1% 0.167 322.6)
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 #66C560, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.032
- Dark Mint #48C072 ΔE 0.035
- Turtle Green #75B84F ΔE 0.035
- Apple #6ECB3C ΔE 0.040
- Algae Green #21C36F ΔE 0.041
- Seaweed #18D17B ΔE 0.045
- Dark Mint Green #20C073 ΔE 0.047
- Dark Lime Green #7EBD01 ΔE 0.052
Use #66C560 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.