#3F8528
Closest named color: Dark Grass Green (#388004). oklch(55.1% 0.146 139), rgb(63, 133, 40).
Aa
Black text reads best on this color (4.59:1).
About this color
#3F8528 is a medium-dark, vivid green. In OKLCH its lightness is 55%, its chroma 0.146 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. Black text reads best on it, at 4.59:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Dark Grass Green (#388004) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #3F8528 |
| RGB | rgb(63, 133, 40) |
| HSL | hsl(105, 54%, 34%) |
| OKLCH | oklch(55.1% 0.146 139) |
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 #3F8528 | 4.56:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #3F8528 | 4.59:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #3F8528 text on white | 4.56:1 | AA | Lc 71.4 | Content text, not long reading |
| #3F8528 text on black | 4.59:1 | AA | Lc -30.2 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E4EDE1
oklch(93.6% 0.019 137.8)
-
Step 200
200
#CDDFC8
oklch(88.4% 0.037 138.9)
-
Step 300
300
#ACCBA3
oklch(80.9% 0.064 138.7)
-
Step 400
400
#7EB070
oklch(70.6% 0.105 139)
-
Step 500
500
#5C9C49
oklch(63% 0.134 138.9)
-
Step 600
600 (this color)
#3F8528
oklch(55.1% 0.146 139)
-
Step 700
700
#32721C
oklch(49.2% 0.135 139)
-
Step 800
800
#2A5D1A
oklch(42.8% 0.112 139.1)
-
Step 900
900
#274C1C
oklch(37.6% 0.087 139)
-
Step 950
950
#172D11
oklch(27.1% 0.056 139.3)
#3F8528 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) | #89791B | 0.096 |
| Deuteranopia (no green cones) | #807330 | 0.097 |
| Tritanopia (no blue cones) | #398072 | 0.100 |
| Achromatopsia (no color) | #767676 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8528
#3F8528
oklch(55.1% 0.146 139)
- #9552A7
#9552A7
oklch(55.1% 0.145 318.8)
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 #3F8528, 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
- Forest Green #228B22 ΔE 0.026
- Tree Green #2A7E19 ΔE 0.031
- Sap Green #5C8B15 ΔE 0.038
- Jungle Green #048243 ΔE 0.039
- Emerald Green #028F1E ΔE 0.041
- Fern Green #548D44 ΔE 0.043
- Kelley Green #009337 ΔE 0.043
Use #3F8528 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.