#3FAA39
Closest named color: Medium Green (#39AD48). oklch(65.3% 0.18 142.4), rgb(63, 170, 57).
Aa
Black text reads best on this color (7.02:1).
About this color
#3FAA39 is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.180 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.013 away. Black text reads best on it, at 7.02:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.180) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 7.02:1 |
| White text | 2.99:1 |
Values
| HEX | #3FAA39 |
| RGB | rgb(63, 170, 57) |
| HSL | hsl(117, 50%, 45%) |
| OKLCH | oklch(65.3% 0.18 142.4) |
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 #3FAA39 | 2.99:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #3FAA39 | 7.02:1 | AAA | Lc 47.9 | Large or bold text, headings |
| #3FAA39 text on white | 2.99:1 | Fails | Lc 56.2 | Large or bold text, headings |
| #3FAA39 text on black | 7.02:1 | AAA | Lc -45.6 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E1EFDF
oklch(93.7% 0.026 141.8)
-
Step 200
200
#C7E2C4
oklch(88.5% 0.05 142.4)
-
Step 300
300
#A0D09B
oklch(81% 0.089 142.3)
-
Step 400
400
#69B662
oklch(70.6% 0.141 142.2)
-
Step 500
500 (this color)
#3FAA39
oklch(65.3% 0.18 142.4)
-
Step 600
600
#038C00
oklch(55.5% 0.188 142.4)
-
Step 700
700
#027600
oklch(49% 0.167 142.4)
-
Step 800
800
#016100
oklch(42.7% 0.145 142.4)
-
Step 900
900
#0E500B
oklch(37.7% 0.118 142.4)
-
Step 950
950
#0C2F0A
oklch(27% 0.074 142.4)
#3FAA39 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) | #AE9B2A | 0.128 |
| Deuteranopia (no green cones) | #A19243 | 0.128 |
| Tritanopia (no blue cones) | #2BA593 | 0.117 |
| Achromatopsia (no color) | #959595 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FAA39
#3FAA39
oklch(65.3% 0.18 142.4)
- #C264CF
#C264CF
oklch(65.3% 0.18 322.6)
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 #3FAA39, closest first.
No curated palette has a color within ΔE 0.04 of #3FAA39.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.013
- Mid Green #50A747 ΔE 0.023
- Grass #5CAC2D ΔE 0.024
- Kelly Green #02AB2E ΔE 0.025
- Leaf Green #5CA904 ΔE 0.028
- Shamrock #01B44C ΔE 0.030
- Dark Pastel Green #56AE57 ΔE 0.038
- Fern #63A950 ΔE 0.042
Use #3FAA39 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.