#3FD78A
Closest named color: Aqua Green (#12E193). oklch(78.2% 0.168 156.3), rgb(63, 215, 138).
Aa
Black text reads best on this color (11.29:1).
About this color
#3FD78A is a light, vivid green. In OKLCH its lightness is 78%, its chroma 0.168 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 0.027 away. Black text reads best on it, at 11.29:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Aqua Green (#12E193) |
| Black text | 11.29:1 |
| White text | 1.85:1 |
Values
| HEX | #3FD78A |
| RGB | rgb(63, 215, 138) |
| HSL | hsl(150, 66%, 55%) |
| OKLCH | oklch(78.2% 0.168 156.3) |
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 #3FD78A | 1.85:1 | Fails | Lc -38.8 | Non-text elements, placeholder text |
| Black text on #3FD78A | 11.29:1 | AAA | Lc 69.3 | Content text, not long reading |
| #3FD78A text on white | 1.85:1 | Fails | Lc 34.6 | Non-text elements, placeholder text |
| #3FD78A text on black | 11.29:1 | AAA | Lc -68.0 | 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
#EAFAEF
oklch(97% 0.022 155.9)
-
Step 100
100
#D1F4DD
oklch(93.6% 0.048 156.6)
-
Step 200
200
#A6ECC0
oklch(88.5% 0.093 156.4)
-
Step 300
300 (this color)
#3FD78A
oklch(78.2% 0.168 156.3)
-
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
#002F19
oklch(26.9% 0.064 157.1)
#3FD78A 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) | #D6C685 | 0.152 |
| Deuteranopia (no green cones) | #C3B98F | 0.148 |
| Tritanopia (no blue cones) | #00D5C3 | 0.079 |
| Achromatopsia (no color) | #BEBEBE | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FD78A
#3FD78A
oklch(78.2% 0.168 156.3)
- #F98BE0
#F98BE0
oklch(78.2% 0.167 336.2)
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 #3FD78A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Green #12E193 ΔE 0.027
- Seaweed #18D17B ΔE 0.029
- Emerald #06D6A0 ΔE 0.031
- Weird Green #3AE57F ΔE 0.046
- Soft Green #6FC276 ΔE 0.058
- Greenblue #23C48B ΔE 0.059
- Algae Green #21C36F ΔE 0.063
- Dark Mint #48C072 ΔE 0.063
Use #3FD78A 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.