#4FB42E
Closest named color: Leafy Green (#51B73B). oklch(68.4% 0.193 139.3), rgb(79, 180, 46).
Aa
Black text reads best on this color (7.90:1).
About this color
#4FB42E is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.193 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.012 away. Black text reads best on it, at 7.90:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.193) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.90:1 |
| White text | 2.65:1 |
Values
| HEX | #4FB42E |
| RGB | rgb(79, 180, 46) |
| HSL | hsl(105, 59%, 44%) |
| OKLCH | oklch(68.4% 0.193 139.3) |
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 #4FB42E | 2.65:1 | Fails | Lc -56.5 | Large or bold text, headings |
| Black text on #4FB42E | 7.90:1 | AAA | Lc 52.7 | Large or bold text, headings |
| #4FB42E text on white | 2.65:1 | Fails | Lc 51.3 | Large or bold text, headings |
| #4FB42E text on black | 7.90:1 | AAA | Lc -50.6 | 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
#DEF0DA
oklch(93.6% 0.035 140)
-
Step 200
200
#C3E4BA
oklch(88.4% 0.066 139)
-
Step 300
300
#97D488
oklch(81% 0.121 139.5)
-
Step 400
400 (this color)
#4FB42E
oklch(68.4% 0.193 139.3)
-
Step 500
500
#38A400
oklch(63.1% 0.2 139.3)
-
Step 600
600
#2E8A00
oklch(55.7% 0.176 139.3)
-
Step 700
700
#257400
oklch(49.1% 0.156 139.3)
-
Step 800
800
#1D5F00
oklch(42.7% 0.135 139.3)
-
Step 900
900
#174F00
oklch(37.6% 0.119 139.2)
-
Step 950
950
#0A3000
oklch(27.2% 0.086 139.4)
#4FB42E 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) | #B9A413 | 0.127 |
| Deuteranopia (no green cones) | #AD9C3C | 0.128 |
| Tritanopia (no blue cones) | #44AE9A | 0.131 |
| Achromatopsia (no color) | #9F9F9F | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FB42E
#4FB42E
oklch(68.4% 0.193 139.3)
- #CB6BE3
#CB6BE3
oklch(68.4% 0.193 319.3)
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 #4FB42E, closest first.
No curated palette has a color within ΔE 0.04 of #4FB42E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.012
- Grass #5CAC2D ΔE 0.024
- Leaf Green #5CA904 ΔE 0.030
- Frog Green #58BC08 ΔE 0.031
- Shamrock #01B44C ΔE 0.034
- Medium Green #39AD48 ΔE 0.035
- Shamrock Green #02C14D ΔE 0.040
- Leaf #71AA34 ΔE 0.041
Use #4FB42E 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.