#66C080
Closest named color: Soft Green (#6FC276). oklch(73.5% 0.127 151.5), rgb(102, 192, 128).
Aa
Black text reads best on this color (9.41:1).
About this color
#66C080 is a medium-light, moderately saturated green. In OKLCH its lightness is 74%, its chroma 0.127 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Green (#6FC276), ΔE 0.017 away. Black text reads best on it, at 9.41:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.41:1 |
| White text | 2.23:1 |
Values
| HEX | #66C080 |
| RGB | rgb(102, 192, 128) |
| HSL | hsl(137, 42%, 58%) |
| OKLCH | oklch(73.5% 0.127 151.5) |
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 #66C080 | 2.23:1 | Fails | Lc -48.5 | Large or bold text, headings |
| Black text on #66C080 | 9.41:1 | AAA | Lc 60.2 | Content text, not long reading |
| #66C080 text on white | 2.23:1 | Fails | Lc 43.7 | Non-text elements, placeholder text |
| #66C080 text on black | 9.41:1 | AAA | Lc -58.4 | 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
#F1F8F2
oklch(97.2% 0.011 149.9)
-
Step 100
100
#DFEFE2
oklch(93.7% 0.024 151.2)
-
Step 200
200
#C5E2CB
oklch(88.5% 0.044 151.5)
-
Step 300
300
#9BD0A7
oklch(81% 0.08 151.3)
-
Step 400
400 (this color)
#66C080
oklch(73.5% 0.127 151.5)
-
Step 500
500
#14A454
oklch(63.1% 0.163 151.6)
-
Step 600
600
#008B44
oklch(55.7% 0.148 151.5)
-
Step 700
700
#007538
oklch(49.2% 0.131 151.5)
-
Step 800
800
#00602D
oklch(42.8% 0.114 151.6)
-
Step 900
900
#005024
oklch(37.7% 0.101 151.4)
-
Step 950
950
#042F15
oklch(26.9% 0.066 152)
#66C080 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) | #C1B37C | 0.110 |
| Deuteranopia (no green cones) | #B3AA84 | 0.106 |
| Tritanopia (no blue cones) | #54BEAF | 0.067 |
| Achromatopsia (no color) | #AEAEAE | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66C080
#66C080
oklch(73.5% 0.127 151.5)
- #D78ACD
#D78ACD
oklch(73.4% 0.127 331.5)
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 #66C080, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.017
- Dark Mint #48C072 ΔE 0.032
- Greenblue #23C48B ΔE 0.036
- Faded Green #7BB274 ΔE 0.039
- Boring Green #63B365 ΔE 0.043
- Green Blue #01C08D ΔE 0.045
- Sage Green #88B378 ΔE 0.045
- Lichen #8FB67B ΔE 0.047
Use #66C080 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.