#3F9943
Closest named color: Kelley Green (#009337). oklch(60.8% 0.15 144.2), rgb(63, 153, 67).
Aa
Black text reads best on this color (5.84:1).
About this color
#3F9943 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.150 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.037 away. Black text reads best on it, at 5.84:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 5.84:1 |
| White text | 3.59:1 |
Values
| HEX | #3F9943 |
| RGB | rgb(63, 153, 67) |
| HSL | hsl(123, 42%, 42%) |
| OKLCH | oklch(60.8% 0.15 144.2) |
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 #3F9943 | 3.59:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #3F9943 | 5.84:1 | AA | Lc 40.9 | Non-text elements, placeholder text |
| #3F9943 text on white | 3.59:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #3F9943 text on black | 5.84:1 | AA | Lc -38.5 | Non-text elements, placeholder text |
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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE1
oklch(93.7% 0.021 143.2)
-
Step 200
200
#CAE1C9
oklch(88.6% 0.041 144.1)
-
Step 300
300
#A4CEA3
oklch(81% 0.074 144.3)
-
Step 400
400
#71B471
oklch(70.8% 0.118 144.2)
-
Step 500
500 (this color)
#3F9943
oklch(60.8% 0.15 144.2)
-
Step 600
600
#208A2A
oklch(55.5% 0.163 144.2)
-
Step 700
700
#0E751C
oklch(49% 0.152 144.2)
-
Step 800
800
#12601A
oklch(42.8% 0.127 144.2)
-
Step 900
900
#194E1C
oklch(37.6% 0.097 144.2)
-
Step 950
950
#102E11
oklch(27% 0.063 144.2)
#3F9943 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) | #9C8C3B | 0.112 |
| Deuteranopia (no green cones) | #908449 | 0.111 |
| Tritanopia (no blue cones) | #2F9586 | 0.094 |
| Achromatopsia (no color) | #878787 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F9943
#3F9943
oklch(60.8% 0.15 144.2)
- #AE5FB5
#AE5FB5
oklch(60.8% 0.151 324.2)
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 #3F9943, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.038
- Fern Green #548D44 ΔE 0.039
- Grass Green #3F9B0B ΔE 0.039
- Irish Green #019529 ΔE 0.041
- Muted Green #5FA052 ΔE 0.042
- Grassy Green #419C03 ΔE 0.042
- Mid Green #50A747 ΔE 0.045
Use #3F9943 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.