#3F9E2A
Closest named color: Grass Green (#3F9B0B). oklch(61.9% 0.176 140.4), rgb(63, 158, 42).
Aa
Black text reads best on this color (6.13:1).
About this color
#3F9E2A is a medium-dark, vivid green. In OKLCH its lightness is 62%, its chroma 0.176 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.015 away. Black text reads best on it, at 6.13:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 6.13:1 |
| White text | 3.42:1 |
Values
| HEX | #3F9E2A |
| RGB | rgb(63, 158, 42) |
| HSL | hsl(109, 58%, 39%) |
| OKLCH | oklch(61.9% 0.176 140.4) |
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 #3F9E2A | 3.42:1 | AA large text | Lc -66.8 | Content text, not long reading |
| Black text on #3F9E2A | 6.13:1 | AA | Lc 42.7 | Non-text elements, placeholder text |
| #3F9E2A text on white | 3.42:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #3F9E2A text on black | 6.13:1 | AA | Lc -40.3 | 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
#F1F7F0
oklch(97% 0.011 141.3)
-
Step 100
100
#E1EEDF
oklch(93.5% 0.024 141.5)
-
Step 200
200
#C9E1C4
oklch(88.4% 0.047 140.3)
-
Step 300
300
#A3CF9A
oklch(80.9% 0.087 140.3)
-
Step 400
400
#6FB561
oklch(70.7% 0.137 140.3)
-
Step 500
500 (this color)
#3F9E2A
oklch(61.9% 0.176 140.4)
-
Step 600
600
#248B00
oklch(55.7% 0.181 140.5)
-
Step 700
700
#1D7500
oklch(49.2% 0.16 140.4)
-
Step 800
800
#166000
oklch(42.8% 0.139 140.4)
-
Step 900
900
#174F09
oklch(37.6% 0.114 140.4)
-
Step 950
950
#0F2F09
oklch(27.1% 0.073 140.7)
#3F9E2A 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) | #A29015 | 0.118 |
| Deuteranopia (no green cones) | #978836 | 0.120 |
| Tritanopia (no blue cones) | #329987 | 0.117 |
| Achromatopsia (no color) | #8B8B8B | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F9E2A
#3F9E2A
oklch(61.9% 0.176 140.4)
- #B35CC6
#B35CC6
oklch(61.9% 0.176 320.2)
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 #3F9E2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.015
- Grassy Green #419C03 ΔE 0.016
- Mid Green #50A747 ΔE 0.038
- Kelly Green #02AB2E ΔE 0.040
- Irish Green #019529 ΔE 0.040
- Medium Green #39AD48 ΔE 0.044
- True Green #089404 ΔE 0.046
- Leaf Green #5CA904 ΔE 0.046
Use #3F9E2A 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.