#66BC77
Closest named color: Soft Green (#6FC276). oklch(72.3% 0.13 148.7), rgb(102, 188, 119).
Aa
Black text reads best on this color (9.02:1).
About this color
#66BC77 is a medium-light, moderately saturated green. In OKLCH its lightness is 72%, its chroma 0.130 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 0.020 away. Black text reads best on it, at 9.02:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.02:1 |
| White text | 2.32:1 |
Values
| HEX | #66BC77 |
| RGB | rgb(102, 188, 119) |
| HSL | hsl(132, 39%, 57%) |
| OKLCH | oklch(72.3% 0.13 148.7) |
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 #66BC77 | 2.32:1 | Fails | Lc -50.6 | Large or bold text, headings |
| Black text on #66BC77 | 9.02:1 | AAA | Lc 58.3 | Large or bold text, headings |
| #66BC77 text on white | 2.32:1 | Fails | Lc 45.7 | Large or bold text, headings |
| #66BC77 text on black | 9.02:1 | AAA | Lc -56.4 | Large or bold text, headings |
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
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E0EFE1
oklch(93.7% 0.024 147.3)
-
Step 200
200
#C6E2C9
oklch(88.5% 0.045 148.2)
-
Step 300
300
#9CD0A4
oklch(80.9% 0.082 148.9)
-
Step 400
400 (this color)
#66BC77
oklch(72.3% 0.13 148.7)
-
Step 500
500
#23A44C
oklch(63.2% 0.167 148.8)
-
Step 600
600
#008B39
oklch(55.6% 0.158 148.7)
-
Step 700
700
#00752F
oklch(49.1% 0.139 148.8)
-
Step 800
800
#006025
oklch(42.7% 0.121 148.7)
-
Step 900
900
#00501E
oklch(37.6% 0.107 148.8)
-
Step 950
950
#062F12
oklch(26.9% 0.069 148.9)
#66BC77 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) | #BDAF72 | 0.106 |
| Deuteranopia (no green cones) | #B1A77B | 0.104 |
| Tritanopia (no blue cones) | #57B9AA | 0.073 |
| Achromatopsia (no color) | #AAAAAA | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66BC77
#66BC77
oklch(72.3% 0.13 148.7)
- #D287CE
#D287CE
oklch(72.4% 0.13 328.7)
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 #66BC77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.020
- Dark Mint #48C072 ΔE 0.027
- Boring Green #63B365 ΔE 0.030
- Faded Green #7BB274 ΔE 0.032
- Greenblue #23C48B ΔE 0.040
- Turtle Green #75B84F ΔE 0.042
- Sage Green #88B378 ΔE 0.042
- Dark Mint Green #20C073 ΔE 0.042
Use #66BC77 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.