#3FAA04
Closest named color: Kelly Green (#02AB2E). oklch(65% 0.203 138.9), rgb(63, 170, 4).
Aa
Black text reads best on this color (6.96:1).
About this color
#3FAA04 is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.203 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.022 away. Black text reads best on it, at 6.96:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.203) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.96:1 |
| White text | 3.01:1 |
Values
| HEX | #3FAA04 |
| RGB | rgb(63, 170, 4) |
| HSL | hsl(99, 95%, 34%) |
| OKLCH | oklch(65% 0.203 138.9) |
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 #3FAA04 | 3.01:1 | AA large text | Lc -61.7 | Content text, not long reading |
| Black text on #3FAA04 | 6.96:1 | AA | Lc 47.7 | Large or bold text, headings |
| #3FAA04 text on white | 3.01:1 | AA large text | Lc 56.4 | Large or bold text, headings |
| #3FAA04 text on black | 6.96:1 | AA | Lc -45.4 | 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 500.
-
Step 50
50
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E1EFDD
oklch(93.7% 0.028 138.7)
-
Step 200
200
#C7E3C0
oklch(88.6% 0.056 139.4)
-
Step 300
300
#A0D092
oklch(80.8% 0.099 138.7)
-
Step 400
400
#69B751
oklch(70.6% 0.158 138.9)
-
Step 500
500 (this color)
#3FAA04
oklch(65% 0.203 138.9)
-
Step 600
600
#318900
oklch(55.5% 0.174 138.8)
-
Step 700
700
#287400
oklch(49.2% 0.155 138.8)
-
Step 800
800
#1F5F00
oklch(42.7% 0.134 138.9)
-
Step 900
900
#194F00
oklch(37.7% 0.118 138.8)
-
Step 950
950
#0C2F01
oklch(26.9% 0.083 139)
#3FAA04 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) | #AF9A00 | 0.134 |
| Deuteranopia (no green cones) | #A39124 | 0.133 |
| Tritanopia (no blue cones) | #32A490 | 0.140 |
| Achromatopsia (no color) | #949494 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FAA04
#3FAA04
oklch(65% 0.203 138.9)
- #C25DDC
#C25DDC
oklch(65.1% 0.203 319)
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 #3FAA04, closest first.
No curated palette has a color within ΔE 0.04 of #3FAA04.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.022
- Leaf Green #5CA904 ΔE 0.023
- Grass #5CAC2D ΔE 0.033
- Medium Green #39AD48 ΔE 0.037
- Grassy Green #419C03 ΔE 0.041
- Shamrock #01B44C ΔE 0.042
- Grass Green #3F9B0B ΔE 0.044
- Mid Green #50A747 ΔE 0.047
Use #3FAA04 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.