#3FC371
Closest named color: Dark Mint (#48C072). oklch(72.6% 0.164 152.1), rgb(63, 195, 113).
Aa
Black text reads best on this color (9.25:1).
About this color
#3FC371 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.164 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.010 away. Black text reads best on it, at 9.25:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.164) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 9.25:1 |
| White text | 2.26:1 |
Values
| HEX | #3FC371 |
| RGB | rgb(63, 195, 113) |
| HSL | hsl(143, 52%, 51%) |
| OKLCH | oklch(72.6% 0.164 152.1) |
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 #3FC371 | 2.26:1 | Fails | Lc -49.1 | Large or bold text, headings |
| Black text on #3FC371 | 9.25:1 | AAA | Lc 59.6 | Large or bold text, headings |
| #3FC371 text on white | 2.26:1 | Fails | Lc 44.3 | Non-text elements, placeholder text |
| #3FC371 text on black | 9.25:1 | AAA | Lc -57.8 | 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
#BEE5C7
oklch(88.6% 0.058 152)
-
Step 300
300
#8DD4A0
oklch(80.9% 0.102 152)
-
Step 400
400 (this color)
#3FC371
oklch(72.6% 0.164 152.1)
-
Step 500
500
#00A554
oklch(63.2% 0.166 152.1)
-
Step 600
600
#008A46
oklch(55.5% 0.145 152.3)
-
Step 700
700
#00743A
oklch(49% 0.128 152.4)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005025
oklch(37.8% 0.1 151.8)
-
Step 950
950
#003014
oklch(27.1% 0.071 152.1)
#3FC371 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) | #C3B36B | 0.140 |
| Deuteranopia (no green cones) | #B3A777 | 0.139 |
| Tritanopia (no blue cones) | #00C0AF | 0.087 |
| Achromatopsia (no color) | #ACACAC | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FC371
#3FC371
oklch(72.6% 0.164 152.1)
- #E17CD4
#E17CD4
oklch(72.7% 0.165 332)
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 #3FC371, closest first.
No curated palette has a color within ΔE 0.04 of #3FC371.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.010
- Algae Green #21C36F ΔE 0.013
- Dark Mint Green #20C073 ΔE 0.017
- Greenblue #23C48B ΔE 0.032
- Cool Green #33B864 ΔE 0.034
- Soft Green #6FC276 ΔE 0.037
- Seaweed #18D17B ΔE 0.038
- Green Blue #01C08D ΔE 0.041
Use #3FC371 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.