#3F911A
Closest named color: Irish Green (#019529). oklch(58.3% 0.169 138.4), rgb(63, 145, 26).
Aa
Black text reads best on this color (5.27:1).
About this color
#3F911A is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.169 and its hue 138°. 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 5.27:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Irish Green (#019529) |
| Black text | 5.27:1 |
| White text | 3.97:1 |
Values
| HEX | #3F911A |
| RGB | rgb(63, 145, 26) |
| HSL | hsl(101, 70%, 34%) |
| OKLCH | oklch(58.3% 0.169 138.4) |
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 #3F911A | 3.97:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #3F911A | 5.27:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #3F911A text on white | 3.97:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #3F911A text on black | 5.27:1 | 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
#A9CD9D
oklch(81% 0.076 137.9)
-
Step 400
400
#79B367
oklch(70.8% 0.122 138.6)
-
Step 500
500
#549F39
oklch(63.2% 0.156 138.4)
-
Step 600
600 (this color)
#3F911A
oklch(58.3% 0.169 138.4)
-
Step 700
700
#2A7300
oklch(49% 0.153 138.4)
-
Step 800
800
#235E04
oklch(42.6% 0.13 138.3)
-
Step 900
900
#224D11
oklch(37.5% 0.101 138.4)
-
Step 950
950
#152D0C
oklch(26.8% 0.063 138.1)
#3F911A 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) | #8B7D28 | 0.109 |
| Tritanopia (no blue cones) | #378C7B | 0.116 |
| Achromatopsia (no color) | #7F7F7F | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F911A
#3F911A
oklch(58.3% 0.169 138.4)
- #A454BA
#A454BA
oklch(58.3% 0.169 318.6)
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 #3F911A, 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 0.028
- Emerald Green #028F1E ΔE 0.028
- Forest Green #228B22 ΔE 0.028
- True Green #089404 ΔE 0.029
- Sap Green #5C8B15 ΔE 0.030
- Grass Green #3F9B0B ΔE 0.031
- Grassy Green #419C03 ΔE 0.035
Use #3F911A 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.