#3F8A3F
Closest named color: Fern Green (#548D44). oklch(56.8% 0.133 143.6), rgb(63, 138, 63).
Aa
Black text reads best on this color (4.91:1).
About this color
#3F8A3F is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.133 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.024 away. Black text reads best on it, at 4.91:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 4.91:1 |
| White text | 4.26:1 |
Values
| HEX | #3F8A3F |
| RGB | rgb(63, 138, 63) |
| HSL | hsl(120, 37%, 39%) |
| OKLCH | oklch(56.8% 0.133 143.6) |
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 #3F8A3F | 4.26:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #3F8A3F | 4.91:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #3F8A3F text on white | 4.26:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #3F8A3F text on black | 4.91:1 | AA | Lc -32.4 | 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 600.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE3
oklch(93.6% 0.017 145.4)
-
Step 200
200
#CDDFCB
oklch(88.5% 0.033 142.5)
-
Step 300
300
#AACBA8
oklch(80.8% 0.06 143.5)
-
Step 400
400
#7CB07A
oklch(70.6% 0.095 143.6)
-
Step 500
500
#589C57
oklch(63% 0.122 143.7)
-
Step 600
600 (this color)
#3F8A3F
oklch(56.8% 0.133 143.6)
-
Step 700
700
#2D722E
oklch(49.2% 0.123 143.7)
-
Step 800
800
#275D27
oklch(42.8% 0.102 143.5)
-
Step 900
900
#254C24
oklch(37.7% 0.079 143.3)
-
Step 950
950
#162D16
oklch(27.1% 0.051 144)
#3F8A3F 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) | #8D7F38 | 0.098 |
| Deuteranopia (no green cones) | #837844 | 0.097 |
| Tritanopia (no blue cones) | #348679 | 0.084 |
| Achromatopsia (no color) | #7A7A7A | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8A3F
#3F8A3F
oklch(56.8% 0.133 143.6)
- #9C59A3
#9C59A3
oklch(56.9% 0.133 323.6)
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 #3F8A3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.024
- Sea Green #2E8B57 ΔE 0.029
- Light Forest Green #4F9153 ΔE 0.035
- Forest Green #228B22 ΔE 0.037
- Sap Green #5C8B15 ΔE 0.039
- Mossy Green #638B27 ΔE 0.039
- Kelley Green #009337 ΔE 0.039
- Moss Green #658B38 ΔE 0.039
Use #3F8A3F 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.