#66BC85
Closest named color: Soft Green (#6FC276). oklch(72.6% 0.117 154.3), rgb(102, 188, 133).
Aa
Black text reads best on this color (9.09:1).
About this color
#66BC85 is a medium-light, moderately saturated green. In OKLCH its lightness is 73%, its chroma 0.117 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.030 away. Black text reads best on it, at 9.09:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.09:1 |
| White text | 2.30:1 |
Values
| HEX | #66BC85 |
| RGB | rgb(102, 188, 133) |
| HSL | hsl(142, 39%, 57%) |
| OKLCH | oklch(72.6% 0.117 154.3) |
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 #66BC85 | 2.30:1 | Fails | Lc -50.2 | Large or bold text, headings |
| Black text on #66BC85 | 9.09:1 | AAA | Lc 58.6 | Large or bold text, headings |
| #66BC85 text on white | 2.30:1 | Fails | Lc 45.4 | Large or bold text, headings |
| #66BC85 text on black | 9.09:1 | AAA | Lc -56.7 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE4
oklch(93.6% 0.02 154.9)
-
Step 200
200
#C5E1CD
oklch(88.4% 0.04 154.4)
-
Step 300
300
#9CCFAC
oklch(80.9% 0.072 154.5)
-
Step 400
400 (this color)
#66BC85
oklch(72.6% 0.117 154.3)
-
Step 500
500
#1FA35E
oklch(63.2% 0.15 154.1)
-
Step 600
600
#008A4C
oklch(55.6% 0.139 154.3)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#005029
oklch(37.8% 0.096 153.9)
-
Step 950
950
#062F18
oklch(27.1% 0.062 154)
#66BC85 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) | #BCB082 | 0.104 |
| Deuteranopia (no green cones) | #AFA788 | 0.101 |
| Tritanopia (no blue cones) | #53BAAD | 0.058 |
| Achromatopsia (no color) | #ABABAB | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66BC85
#66BC85
oklch(72.6% 0.117 154.3)
- #D38AC4
#D38AC4
oklch(72.6% 0.116 334.4)
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 #66BC85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.030
- Faded Green #7BB274 ΔE 0.032
- Sage Green #88B378 ΔE 0.038
- Greenblue #23C48B ΔE 0.040
- Dark Mint #48C072 ΔE 0.040
- Boring Green #63B365 ΔE 0.042
- Lichen #8FB67B ΔE 0.042
- Green Blue #01C08D ΔE 0.043
Use #66BC85 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.