#3F8A00
Closest named color: Forest Green (#228B22). oklch(56.3% 0.169 136.5), rgb(63, 138, 0).
Aa
Black text reads best on this color (4.84:1).
About this color
#3F8A00 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.169 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.019 away. Black text reads best on it, at 4.84:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #3F8A00 |
| RGB | rgb(63, 138, 0) |
| HSL | hsl(93, 100%, 27%) |
| OKLCH | oklch(56.3% 0.169 136.5) |
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 #3F8A00 | 4.33:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #3F8A00 | 4.84:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #3F8A00 text on white | 4.33:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #3F8A00 text on black | 4.84:1 | AA | Lc -32.1 | 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
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E3EEDF
oklch(93.7% 0.023 137.2)
-
Step 200
200
#CDE0C5
oklch(88.5% 0.042 136.3)
-
Step 300
300
#AACC9C
oklch(80.8% 0.075 136.7)
-
Step 400
400
#7CB264
oklch(70.7% 0.122 136.6)
-
Step 500
500
#599E35
oklch(63.1% 0.156 136.6)
-
Step 600
600 (this color)
#3F8A00
oklch(56.3% 0.169 136.5)
-
Step 700
700
#337200
oklch(49.1% 0.147 136.5)
-
Step 800
800
#295E00
oklch(42.8% 0.128 136.5)
-
Step 900
900
#254D0E
oklch(37.7% 0.101 136.7)
-
Step 950
950
#162D0B
oklch(26.9% 0.064 136.9)
#3F8A00 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) | #8F7D00 | 0.107 |
| Deuteranopia (no green cones) | #86771A | 0.105 |
| Tritanopia (no blue cones) | #3A8574 | 0.119 |
| Achromatopsia (no color) | #797979 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8A00
#3F8A00
oklch(56.3% 0.169 136.5)
- #9B4FB6
#9B4FB6
oklch(56.3% 0.169 316.4)
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 #3F8A00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.019
- Emerald Green #028F1E ΔE 0.026
- Dark Grass Green #388004 ΔE 0.032
- Sap Green #5C8B15 ΔE 0.033
- True Green #089404 ΔE 0.035
- Irish Green #019529 ΔE 0.035
- Kelley Green #009337 ΔE 0.036
- Tree Green #2A7E19 ΔE 0.044
Use #3F8A00 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.