#3FB238
Closest named color: Leafy Green (#51B73B). oklch(67.4% 0.191 142.3), rgb(63, 178, 56).
Aa
Black text reads best on this color (7.63:1).
About this color
#3FB238 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.191 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.021 away. Black text reads best on it, at 7.63:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.191) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.63:1 |
| White text | 2.74:1 |
Values
| HEX | #3FB238 |
| RGB | rgb(63, 178, 56) |
| HSL | hsl(117, 52%, 46%) |
| OKLCH | oklch(67.4% 0.191 142.3) |
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 #3FB238 | 2.74:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #3FB238 | 7.63:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #3FB238 text on white | 2.74:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #3FB238 text on black | 7.63:1 | AAA | Lc -49.2 | 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
#DDF0DB
oklch(93.5% 0.034 142.6)
-
Step 200
200
#C1E5BD
oklch(88.5% 0.066 142.3)
-
Step 300
300
#93D48D
oklch(80.8% 0.118 142.4)
-
Step 400
400 (this color)
#3FB238
oklch(67.4% 0.191 142.3)
-
Step 500
500
#08A700
oklch(63.2% 0.214 142.3)
-
Step 600
600
#068C00
oklch(55.5% 0.188 142.3)
-
Step 700
700
#047600
oklch(49.1% 0.166 142.3)
-
Step 800
800
#036100
oklch(42.7% 0.145 142.3)
-
Step 900
900
#025100
oklch(37.7% 0.128 142.3)
-
Step 950
950
#013100
oklch(27.2% 0.092 142.2)
#3FB238 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) | #B6A227 | 0.134 |
| Deuteranopia (no green cones) | #A89843 | 0.135 |
| Tritanopia (no blue cones) | #28AD99 | 0.122 |
| Achromatopsia (no color) | #9C9C9C | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FB238
#3FB238
oklch(67.4% 0.191 142.3)
- #CB67DA
#CB67DA
oklch(67.4% 0.19 322.3)
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 #3FB238, closest first.
No curated palette has a color within ΔE 0.04 of #3FB238.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.021
- Shamrock #01B44C ΔE 0.021
- Medium Green #39AD48 ΔE 0.023
- Grass #5CAC2D ΔE 0.024
- Leaf Green #5CA904 ΔE 0.031
- Kelly Green #02AB2E ΔE 0.033
- Mid Green #50A747 ΔE 0.039
- Shamrock Green #02C14D ΔE 0.041
Use #3FB238 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.