#66A45F
Closest named color: Off Green (#6BA353). oklch(65.9% 0.118 141.9), rgb(102, 164, 95).
Aa
Black text reads best on this color (7.04:1).
About this color
#66A45F is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.118 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Off Green (#6BA353), ΔE 0.013 away. Black text reads best on it, at 7.04:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Off Green (#6BA353) |
| Black text | 7.04:1 |
| White text | 2.98:1 |
Values
| HEX | #66A45F |
| RGB | rgb(102, 164, 95) |
| HSL | hsl(114, 27%, 51%) |
| OKLCH | oklch(65.9% 0.118 141.9) |
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 #66A45F | 2.98:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #66A45F | 7.04:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #66A45F text on white | 2.98:1 | Fails | Lc 56.3 | Large or bold text, headings |
| #66A45F text on black | 7.04:1 | AAA | Lc -45.5 | 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 500.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CEDFCB
oklch(88.5% 0.033 141)
-
Step 300
300
#ACCBA8
oklch(81% 0.059 141.9)
-
Step 400
400
#7FAF7A
oklch(70.6% 0.091 142.2)
-
Step 500
500 (this color)
#66A45F
oklch(65.9% 0.118 141.9)
-
Step 600
600
#42853B
oklch(55.5% 0.128 141.9)
-
Step 700
700
#33712D
oklch(49.1% 0.12 141.9)
-
Step 800
800
#2B5C26
oklch(42.7% 0.099 141.9)
-
Step 900
900
#284C24
oklch(37.8% 0.077 141.8)
-
Step 950
950
#182C16
oklch(26.9% 0.047 142.1)
#66A45F 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) | #A7995A | 0.086 |
| Deuteranopia (no green cones) | #9E9363 | 0.085 |
| Tritanopia (no blue cones) | #60A093 | 0.076 |
| Achromatopsia (no color) | #959595 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66A45F
#66A45F
oklch(65.9% 0.118 141.9)
- #B379BD
#B379BD
oklch(65.9% 0.117 321.5)
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 #66A45F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Green #6BA353 ΔE 0.013
- Dull Green #74A662 ΔE 0.018
- Muted Green #5FA052 ΔE 0.020
- Flat Green #699D4C ΔE 0.024
- Algae #54AC68 ΔE 0.025
- Fern #63A950 ΔE 0.026
- Asparagus #77AB56 ΔE 0.032
- Moss #769958 ΔE 0.033
Use #66A45F 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.