#3F9949
Closest named color: Light Forest Green (#4F9153). oklch(60.9% 0.145 145.6), rgb(63, 153, 73).
Aa
Black text reads best on this color (5.86:1).
About this color
#3F9949 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.145 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Forest Green (#4F9153), ΔE 0.033 away. Black text reads best on it, at 5.86:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Light Forest Green (#4F9153) |
| Black text | 5.86:1 |
| White text | 3.58:1 |
Values
| HEX | #3F9949 |
| RGB | rgb(63, 153, 73) |
| HSL | hsl(127, 42%, 42%) |
| OKLCH | oklch(60.9% 0.145 145.6) |
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 #3F9949 | 3.58:1 | AA large text | Lc -68.6 | Content text, not long reading |
| Black text on #3F9949 | 5.86:1 | AA | Lc 41.0 | Non-text elements, placeholder text |
| #3F9949 text on white | 3.58:1 | AA large text | Lc 63.1 | Content text, not long reading |
| #3F9949 text on black | 5.86:1 | AA | Lc -38.6 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EEE2
oklch(93.7% 0.02 145.4)
-
Step 200
200
#CAE1CA
oklch(88.6% 0.04 145.2)
-
Step 300
300
#A4CDA5
oklch(80.8% 0.071 145.5)
-
Step 400
400
#71B375
oklch(70.6% 0.112 145.7)
-
Step 500
500 (this color)
#3F9949
oklch(60.9% 0.145 145.6)
-
Step 600
600
#1F8A32
oklch(55.6% 0.157 145.6)
-
Step 700
700
#0D7524
oklch(49.1% 0.146 145.6)
-
Step 800
800
#125F20
oklch(42.6% 0.12 145.7)
-
Step 900
900
#194E20
oklch(37.7% 0.094 145.8)
-
Step 950
950
#102E13
oklch(27% 0.06 145.6)
#3F9949 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) | #9B8C42 | 0.110 |
| Deuteranopia (no green cones) | #90844F | 0.111 |
| Tritanopia (no blue cones) | #2D9587 | 0.089 |
| Achromatopsia (no color) | #878787 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F9949
#3F9949
oklch(60.9% 0.145 145.6)
- #AE61B1
#AE61B1
oklch(61% 0.144 325.8)
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 #3F9949, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Forest Green #4F9153 ΔE 0.033
- Fern Green #548D44 ΔE 0.036
- Muted Green #5FA052 ΔE 0.039
- Kelley Green #009337 ΔE 0.040
- Flat Green #699D4C ΔE 0.044
- Irish Green #019529 ΔE 0.046
- Grass Green #3F9B0B ΔE 0.046
- Mid Green #50A747 ΔE 0.046
Use #3F9949 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.