#3FB442
Closest named color: Leafy Green (#51B73B). oklch(68% 0.186 143.6), rgb(63, 180, 66).
Aa
Black text reads best on this color (7.81:1).
About this color
#3FB442 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.186 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.017 away. Black text reads best on it, at 7.81:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.81:1 |
| White text | 2.68:1 |
Values
| HEX | #3FB442 |
| RGB | rgb(63, 180, 66) |
| HSL | hsl(122, 48%, 48%) |
| OKLCH | oklch(68% 0.186 143.6) |
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 #3FB442 | 2.68:1 | Fails | Lc -56.9 | Large or bold text, headings |
| Black text on #3FB442 | 7.81:1 | AAA | Lc 52.3 | Large or bold text, headings |
| #3FB442 text on white | 2.68:1 | Fails | Lc 51.7 | Large or bold text, headings |
| #3FB442 text on black | 7.81:1 | AAA | Lc -50.2 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DDF0DC
oklch(93.6% 0.033 143.9)
-
Step 200
200
#C0E5BE
oklch(88.5% 0.066 143.7)
-
Step 300
300
#92D490
oklch(80.8% 0.116 143.7)
-
Step 400
400 (this color)
#3FB442
oklch(68% 0.186 143.6)
-
Step 500
500
#00A71B
oklch(63.2% 0.208 143.5)
-
Step 600
600
#008C15
oklch(55.5% 0.183 143.5)
-
Step 700
700
#007610
oklch(49.1% 0.161 143.5)
-
Step 800
800
#00610B
oklch(42.7% 0.141 143.5)
-
Step 900
900
#005108
oklch(37.7% 0.124 143.6)
-
Step 950
950
#003103
oklch(27.2% 0.089 143.6)
#3FB442 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) | #B8A435 | 0.136 |
| Deuteranopia (no green cones) | #A99A4C | 0.135 |
| Tritanopia (no blue cones) | #24AF9C | 0.117 |
| Achromatopsia (no color) | #9E9E9E | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FB442
#3FB442
oklch(68% 0.186 143.6)
- #CE6AD9
#CE6AD9
oklch(68.1% 0.186 323.5)
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 #3FB442, closest first.
No curated palette has a color within ΔE 0.04 of #3FB442.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.017
- Shamrock #01B44C ΔE 0.019
- Medium Green #39AD48 ΔE 0.023
- Grass #5CAC2D ΔE 0.027
- Cool Green #33B864 ΔE 0.033
- Shamrock Green #02C14D ΔE 0.036
- Dark Pastel Green #56AE57 ΔE 0.036
- Leaf Green #5CA904 ΔE 0.037
Use #3FB442 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.