#3F822B
Closest named color: Dark Grass Green (#388004). oklch(54.3% 0.139 139.3), rgb(63, 130, 43).
Aa
White text reads best on this color (4.73:1).
About this color
#3F822B is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.139 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grass Green (#388004), ΔE 0.024 away. White text reads best on it, at 4.73:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Dark Grass Green (#388004) |
| Black text | 4.43:1 |
| White text | 4.73:1 |
Values
| HEX | #3F822B |
| RGB | rgb(63, 130, 43) |
| HSL | hsl(106, 50%, 34%) |
| OKLCH | oklch(54.3% 0.139 139.3) |
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 #3F822B | 4.73:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #3F822B | 4.43:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #3F822B text on white | 4.73:1 | AA | Lc 72.6 | Content text, not long reading |
| #3F822B text on black | 4.43:1 | AA large text | Lc -29.1 | 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
#E4EDE2
oklch(93.6% 0.017 140)
-
Step 200
200
#CEDFC9
oklch(88.5% 0.035 138.6)
-
Step 300
300
#ACCBA4
oklch(80.9% 0.063 139.3)
-
Step 400
400
#80B073
oklch(70.7% 0.1 139.1)
-
Step 500
500
#5E9C4D
oklch(63.2% 0.129 139.2)
-
Step 600
600 (this color)
#3F822B
oklch(54.3% 0.139 139.3)
-
Step 700
700
#347121
oklch(49% 0.129 139.2)
-
Step 800
800
#2C5C1E
oklch(42.6% 0.106 139.3)
-
Step 900
900
#284C1E
oklch(37.7% 0.084 139.3)
-
Step 950
950
#182D12
oklch(27.1% 0.054 139)
#3F822B 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) | #867720 | 0.093 |
| Deuteranopia (no green cones) | #7D7132 | 0.093 |
| Tritanopia (no blue cones) | #397E70 | 0.094 |
| Achromatopsia (no color) | #737373 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F822B
#3F822B
oklch(54.3% 0.139 139.3)
- #9251A2
#9251A2
oklch(54.3% 0.14 319.4)
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 #3F822B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grass Green #388004 ΔE 0.024
- Tree Green #2A7E19 ΔE 0.027
- Jungle Green #048243 ΔE 0.034
- Forest Green #228B22 ΔE 0.034
- Green #008000 ΔE 0.045
- Sap Green #5C8B15 ΔE 0.045
- Olive Green #677A04 ΔE 0.046
- Fern Green #548D44 ΔE 0.047
Use #3F822B 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.