#3F7F40
Closest named color: Jungle Green (#048243). oklch(53.8% 0.116 144.1), rgb(63, 127, 64).
Aa
White text reads best on this color (4.85:1).
About this color
#3F7F40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.116 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.029 away. White text reads best on it, at 4.85:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #3F7F40 |
| RGB | rgb(63, 127, 64) |
| HSL | hsl(121, 34%, 37%) |
| OKLCH | oklch(53.8% 0.116 144.1) |
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 #3F7F40 | 4.85:1 | AA | Lc -78.9 | Fine for body text |
| Black text on #3F7F40 | 4.32:1 | AA large text | Lc 30.6 | Non-text elements, placeholder text |
| #3F7F40 text on white | 4.85:1 | AA | Lc 73.5 | Content text, not long reading |
| #3F7F40 text on black | 4.32:1 | AA large text | Lc -28.2 | Dividers and decoration only |
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 600.
-
Step 50
50
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE4
oklch(93.7% 0.015 145.5)
-
Step 200
200
#CEDECD
oklch(88.4% 0.029 143.7)
-
Step 300
300
#ADCAAC
oklch(80.9% 0.052 144.2)
-
Step 400
400
#81AF80
oklch(70.8% 0.084 144.1)
-
Step 500
500
#609A5F
oklch(63.1% 0.106 143.8)
-
Step 600
600 (this color)
#3F7F40
oklch(53.8% 0.116 144.1)
-
Step 700
700
#367037
oklch(49.1% 0.107 144.1)
-
Step 800
800
#2D5B2E
oklch(42.6% 0.088 144.3)
-
Step 900
900
#294B29
oklch(37.7% 0.069 144)
-
Step 950
950
#182C18
oklch(27% 0.045 144.2)
#3F7F40 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) | #81753B | 0.086 |
| Deuteranopia (no green cones) | #786F44 | 0.085 |
| Tritanopia (no blue cones) | #367C70 | 0.072 |
| Achromatopsia (no color) | #717171 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F7F40
#3F7F40
oklch(53.8% 0.116 144.1)
- #8E5594
#8E5594
oklch(53.8% 0.115 323.5)
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 #3F7F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.029
- Sea Green #2E8B57 ΔE 0.038
- Tree Green #2A7E19 ΔE 0.044
- Military Green #667C3E ΔE 0.044
- Dark Sage #598556 ΔE 0.045
- Dark Grass Green #388004 ΔE 0.048
- Muddy Green #657432 ΔE 0.049
- Fern Green #548D44 ΔE 0.050
Use #3F7F40 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.