#4FB237
Closest named color: Leafy Green (#51B73B). oklch(67.9% 0.185 140.1), rgb(79, 178, 55).
Aa
Black text reads best on this color (7.75:1).
About this color
#4FB237 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.185 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.014 away. Black text reads best on it, at 7.75:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.75:1 |
| White text | 2.70:1 |
Values
| HEX | #4FB237 |
| RGB | rgb(79, 178, 55) |
| HSL | hsl(108, 53%, 46%) |
| OKLCH | oklch(67.9% 0.185 140.1) |
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 #4FB237 | 2.70:1 | Fails | Lc -57.3 | Large or bold text, headings |
| Black text on #4FB237 | 7.75:1 | AAA | Lc 51.9 | Large or bold text, headings |
| #4FB237 text on white | 2.70:1 | Fails | Lc 52.1 | Large or bold text, headings |
| #4FB237 text on black | 7.75:1 | AAA | Lc -49.7 | 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
#F0F8EE
oklch(97% 0.016 139.4)
-
Step 100
100
#DFF0DB
oklch(93.7% 0.033 139.7)
-
Step 200
200
#C3E4BC
oklch(88.4% 0.064 140.2)
-
Step 300
300
#98D38B
oklch(80.9% 0.116 140)
-
Step 400
400 (this color)
#4FB237
oklch(67.9% 0.185 140.1)
-
Step 500
500
#31A500
oklch(63.2% 0.204 140.1)
-
Step 600
600
#288A00
oklch(55.5% 0.179 140)
-
Step 700
700
#207400
oklch(49% 0.158 140)
-
Step 800
800
#186000
oklch(42.8% 0.138 140.2)
-
Step 900
900
#135000
oklch(37.8% 0.122 140.1)
-
Step 950
950
#083000
oklch(27.1% 0.087 140)
#4FB237 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) | #B7A225 | 0.125 |
| Deuteranopia (no green cones) | #AA9A42 | 0.125 |
| Tritanopia (no blue cones) | #44AC99 | 0.124 |
| Achromatopsia (no color) | #9D9D9D | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FB237
#4FB237
oklch(67.9% 0.185 140.1)
- #C96CDD
#C96CDD
oklch(67.9% 0.185 320.3)
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 #4FB237, closest first.
No curated palette has a color within ΔE 0.04 of #4FB237.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.014
- Grass #5CAC2D ΔE 0.017
- Medium Green #39AD48 ΔE 0.027
- Leaf Green #5CA904 ΔE 0.028
- Shamrock #01B44C ΔE 0.030
- Leaf #71AA34 ΔE 0.036
- Dark Pastel Green #56AE57 ΔE 0.037
- Mid Green #50A747 ΔE 0.038
Use #4FB237 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.