#3FC56F
Closest named color: Algae Green (#21C36F). oklch(73.1% 0.169 151.4), rgb(63, 197, 111).
Aa
Black text reads best on this color (9.42:1).
About this color
#3FC56F is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.169 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.014 away. Black text reads best on it, at 9.42:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.42:1 |
| White text | 2.22:1 |
Values
| HEX | #3FC56F |
| RGB | rgb(63, 197, 111) |
| HSL | hsl(141, 54%, 51%) |
| OKLCH | oklch(73.1% 0.169 151.4) |
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 #3FC56F | 2.22:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #3FC56F | 9.42:1 | AAA | Lc 60.5 | Content text, not long reading |
| #3FC56F text on white | 2.22:1 | Fails | Lc 43.5 | Non-text elements, placeholder text |
| #3FC56F text on black | 9.42:1 | AAA | Lc -58.7 | 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
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DCF0E0
oklch(93.6% 0.03 151.5)
-
Step 200
200
#BEE5C6
oklch(88.6% 0.059 151.1)
-
Step 300
300
#8CD49E
oklch(80.8% 0.105 151.4)
-
Step 400
400 (this color)
#3FC56F
oklch(73.1% 0.169 151.4)
-
Step 500
500
#00A551
oklch(63.2% 0.169 151.3)
-
Step 600
600
#008B43
oklch(55.7% 0.149 151.3)
-
Step 700
700
#007537
oklch(49.2% 0.132 151.1)
-
Step 800
800
#00602C
oklch(42.8% 0.115 151.2)
-
Step 900
900
#005024
oklch(37.7% 0.101 151.4)
-
Step 950
950
#003013
oklch(27.1% 0.072 151.4)
#3FC56F 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) | #C6B569 | 0.143 |
| Deuteranopia (no green cones) | #B5A975 | 0.140 |
| Tritanopia (no blue cones) | #00C2B0 | 0.090 |
| Achromatopsia (no color) | #AEAEAE | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FC56F
#3FC56F
oklch(73.1% 0.169 151.4)
- #E37CD8
#E37CD8
oklch(73.1% 0.169 331.2)
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 #3FC56F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.014
- Dark Mint #48C072 ΔE 0.016
- Dark Mint Green #20C073 ΔE 0.022
- Seaweed #18D17B ΔE 0.032
- Greenblue #23C48B ΔE 0.036
- Soft Green #6FC276 ΔE 0.038
- Cool Green #33B864 ΔE 0.039
- Shamrock Green #02C14D ΔE 0.045
Use #3FC56F 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.