#3F911E
Closest named color: Irish Green (#019529). oklch(58.3% 0.167 138.7), rgb(63, 145, 30).
Aa
Black text reads best on this color (5.28:1).
About this color
#3F911E is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.167 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Irish Green (#019529), ΔE 0.025 away. Black text reads best on it, at 5.28:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Irish Green (#019529) |
| Black text | 5.28:1 |
| White text | 3.97:1 |
Values
| HEX | #3F911E |
| RGB | rgb(63, 145, 30) |
| HSL | hsl(103, 66%, 34%) |
| OKLCH | oklch(58.3% 0.167 138.7) |
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 #3F911E | 3.97:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #3F911E | 5.28:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #3F911E text on white | 3.97:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #3F911E text on black | 5.28:1 | AA | Lc -34.9 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EEE0
oklch(93.7% 0.022 139)
-
Step 200
200
#CCE0C6
oklch(88.5% 0.041 138.5)
-
Step 300
300
#A9CD9E
oklch(81% 0.075 138.4)
-
Step 400
400
#79B268
oklch(70.6% 0.119 138.7)
-
Step 500
500
#549E3C
oklch(63% 0.153 138.8)
-
Step 600
600 (this color)
#3F911E
oklch(58.3% 0.167 138.7)
-
Step 700
700
#297400
oklch(49.2% 0.154 138.7)
-
Step 800
800
#235E07
oklch(42.6% 0.128 138.6)
-
Step 900
900
#224D13
oklch(37.6% 0.099 138.8)
-
Step 950
950
#152D0D
oklch(26.9% 0.062 138.6)
#3F911E 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) | #968400 | 0.109 |
| Deuteranopia (no green cones) | #8B7D2B | 0.109 |
| Tritanopia (no blue cones) | #378C7C | 0.115 |
| Achromatopsia (no color) | #7F7F7F | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F911E
#3F911E
oklch(58.3% 0.167 138.7)
- #A455B9
#A455B9
oklch(58.4% 0.166 318.8)
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 #3F911E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Irish Green #019529 ΔE 0.025
- Kelley Green #009337 ΔE 0.027
- Forest Green #228B22 ΔE 0.028
- Emerald Green #028F1E ΔE 0.029
- Sap Green #5C8B15 ΔE 0.030
- True Green #089404 ΔE 0.031
- Grass Green #3F9B0B ΔE 0.032
- Grassy Green #419C03 ΔE 0.036
Use #3F911E 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.