#3FE18F
Closest named color: Aqua Green (#12E193). oklch(80.8% 0.176 156.1), rgb(63, 225, 143).
Aa
Black text reads best on this color (12.37:1).
About this color
#3FE18F is a light, vivid green. In OKLCH its lightness is 81%, its chroma 0.176 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Green (#12E193), ΔE 0.012 away. Black text reads best on it, at 12.37:1.
| Hue family | Greens |
| Lightness | light (81%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Aqua Green (#12E193) |
| Black text | 12.37:1 |
| White text | 1.69:1 |
Values
| HEX | #3FE18F |
| RGB | rgb(63, 225, 143) |
| HSL | hsl(150, 73%, 56%) |
| OKLCH | oklch(80.8% 0.176 156.1) |
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 #3FE18F | 1.69:1 | Fails | Lc -33.5 | Non-text elements, placeholder text |
| Black text on #3FE18F | 12.37:1 | AAA | Lc 74.0 | Content text, not long reading |
| #3FE18F text on white | 1.69:1 | Fails | Lc 29.8 | Dividers and decoration only |
| #3FE18F text on black | 12.37:1 | AAA | Lc -73.0 | Content text, not long reading |
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 300.
-
Step 50
50
#EAFBEF
oklch(97.2% 0.024 155.2)
-
Step 100
100
#D0F5DC
oklch(93.7% 0.051 155.7)
-
Step 200
200
#A3EDBE
oklch(88.5% 0.098 155.9)
-
Step 300
300 (this color)
#3FE18F
oklch(80.8% 0.176 156.1)
-
Step 400
400
#00BF72
oklch(70.8% 0.171 156.2)
-
Step 500
500
#00A461
oklch(63.2% 0.153 156.1)
-
Step 600
600
#008A51
oklch(55.7% 0.135 156.2)
-
Step 700
700
#007443
oklch(49.1% 0.119 156.1)
-
Step 800
800
#005F36
oklch(42.7% 0.103 156.1)
-
Step 900
900
#004F2C
oklch(37.6% 0.091 156.1)
-
Step 950
950
#002F18
oklch(26.8% 0.065 156.1)
#3FE18F 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) | #E0CF8A | 0.159 |
| Deuteranopia (no green cones) | #CCC194 | 0.155 |
| Tritanopia (no blue cones) | #00DFCC | 0.084 |
| Achromatopsia (no color) | #C7C7C7 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FE18F
#3FE18F
oklch(80.8% 0.176 156.1)
- #FF96E7
#FF96E7
oklch(80.8% 0.159 336)
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 #3FE18F, closest first.
No curated palette has a color within ΔE 0.04 of #3FE18F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Green #12E193 ΔE 0.012
- Weird Green #3AE57F ΔE 0.025
- Emerald #06D6A0 ΔE 0.046
- Seaweed #18D17B ΔE 0.051
- Aqua Marine #2EE8BB ΔE 0.054
- Turquoise Green #04F489 ΔE 0.056
- Fresh Green #69D84F ΔE 0.062
- Medium Spring Green #00FA9A ΔE 0.066
Use #3FE18F 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.