#66C164
Closest named color: Soft Green (#6FC276). oklch(73.2% 0.156 143.4), rgb(102, 193, 100).
Aa
Black text reads best on this color (9.37:1).
About this color
#66C164 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.156 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 0.024 away. Black text reads best on it, at 9.37:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Soft Green (#6FC276) |
| Black text | 9.37:1 |
| White text | 2.23:1 |
Values
| HEX | #66C164 |
| RGB | rgb(102, 193, 100) |
| HSL | hsl(119, 43%, 57%) |
| OKLCH | oklch(73.2% 0.156 143.4) |
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 #66C164 | 2.23:1 | Fails | Lc -48.7 | Large or bold text, headings |
| Black text on #66C164 | 9.37:1 | AAA | Lc 60.1 | Content text, not long reading |
| #66C164 text on white | 2.23:1 | Fails | Lc 43.9 | Non-text elements, placeholder text |
| #66C164 text on black | 9.37:1 | AAA | Lc -58.2 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C5E3C3
oklch(88.5% 0.054 143.4)
-
Step 300
300
#9BD198
oklch(80.8% 0.097 143.3)
-
Step 400
400 (this color)
#66C164
oklch(73.2% 0.156 143.4)
-
Step 500
500
#1AA624
oklch(63.2% 0.2 143.4)
-
Step 600
600
#008C12
oklch(55.5% 0.184 143.3)
-
Step 700
700
#00760E
oklch(49.1% 0.162 143.4)
-
Step 800
800
#006109
oklch(42.7% 0.141 143.3)
-
Step 900
900
#005106
oklch(37.7% 0.125 143.3)
-
Step 950
950
#053006
oklch(27% 0.082 143.2)
#66C164 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) | #C5B25C | 0.117 |
| Deuteranopia (no green cones) | #B8AA6A | 0.115 |
| Tritanopia (no blue cones) | #5ABCAB | 0.099 |
| Achromatopsia (no color) | #ADADAD | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66C164
#66C164
oklch(73.2% 0.156 143.4)
- #D784E0
#D784E0
oklch(73.2% 0.156 323.4)
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 #66C164, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Green #6FC276 ΔE 0.024
- Dark Mint #48C072 ΔE 0.026
- Turtle Green #75B84F ΔE 0.028
- Algae Green #21C36F ΔE 0.037
- Dark Mint Green #20C073 ΔE 0.041
- Boring Green #63B365 ΔE 0.041
- Cool Green #33B864 ΔE 0.047
- Seaweed #18D17B ΔE 0.050
Use #66C164 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.