#66AC14
Closest named color: Grass (#5CAC2D). oklch(67.2% 0.184 132.9), rgb(102, 172, 20).
Aa
Black text reads best on this color (7.47:1).
About this color
#66AC14 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.184 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.013 away. Black text reads best on it, at 7.47:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.47:1 |
| White text | 2.80:1 |
Values
| HEX | #66AC14 |
| RGB | rgb(102, 172, 20) |
| HSL | hsl(88, 79%, 38%) |
| OKLCH | oklch(67.2% 0.184 132.9) |
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 #66AC14 | 2.80:1 | Fails | Lc -59.0 | Large or bold text, headings |
| Black text on #66AC14 | 7.47:1 | AAA | Lc 50.3 | Large or bold text, headings |
| #66AC14 text on white | 2.80:1 | Fails | Lc 53.7 | Large or bold text, headings |
| #66AC14 text on black | 7.47:1 | AAA | Lc -48.1 | 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
#F1F8ED
oklch(97.1% 0.016 133.8)
-
Step 100
100
#E1EFD9
oklch(93.6% 0.033 133.9)
-
Step 200
200
#C9E3B8
oklch(88.5% 0.064 133.1)
-
Step 300
300
#A4D183
oklch(81% 0.115 132.8)
-
Step 400
400 (this color)
#66AC14
oklch(67.2% 0.184 132.9)
-
Step 500
500
#5C9E00
oklch(63% 0.177 132.8)
-
Step 600
600
#4C8500
oklch(55.5% 0.157 132.9)
-
Step 700
700
#3F7000
oklch(49.1% 0.138 133)
-
Step 800
800
#335C00
oklch(42.8% 0.12 132.9)
-
Step 900
900
#294D00
oklch(37.8% 0.107 133.2)
-
Step 950
950
#162E00
oklch(27.1% 0.077 133.4)
#66AC14 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) | #B39E00 | 0.104 |
| Deuteranopia (no green cones) | #AA982A | 0.105 |
| Tritanopia (no blue cones) | #66A592 | 0.137 |
| Achromatopsia (no color) | #9A9A9A | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66AC14
#66AC14
oklch(67.2% 0.184 132.9)
- #BC6EE5
#BC6EE5
oklch(67.2% 0.184 312.7)
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 #66AC14, closest first.
No curated palette has a color within ΔE 0.04 of #66AC14.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.013
- Leaf Green #5CA904 ΔE 0.015
- Leaf #71AA34 ΔE 0.024
- Leafy Green #51B73B ΔE 0.032
- Avocado Green #87A922 ΔE 0.040
- Medium Green #39AD48 ΔE 0.041
- Mid Green #50A747 ΔE 0.042
- Fern #63A950 ΔE 0.045
Use #66AC14 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.