#3FC161
Closest named color: Algae Green (#21C36F). oklch(71.8% 0.176 148.4), rgb(63, 193, 97).
Aa
Black text reads best on this color (9.01:1).
About this color
#3FC161 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.176 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.016 away. Black text reads best on it, at 9.01:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.01:1 |
| White text | 2.33:1 |
Values
| HEX | #3FC161 |
| RGB | rgb(63, 193, 97) |
| HSL | hsl(136, 51%, 50%) |
| OKLCH | oklch(71.8% 0.176 148.4) |
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 #3FC161 | 2.33:1 | Fails | Lc -50.4 | Large or bold text, headings |
| Black text on #3FC161 | 9.01:1 | AAA | Lc 58.4 | Large or bold text, headings |
| #3FC161 text on white | 2.33:1 | Fails | Lc 45.5 | Large or bold text, headings |
| #3FC161 text on black | 9.01:1 | AAA | Lc -56.6 | 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
#EFF8F0
oklch(97% 0.014 148.8)
-
Step 100
100
#DCF0DE
oklch(93.5% 0.032 148.2)
-
Step 200
200
#BEE5C3
oklch(88.5% 0.062 148.6)
-
Step 300
300
#8ED599
oklch(81% 0.11 148.4)
-
Step 400
400 (this color)
#3FC161
oklch(71.8% 0.176 148.4)
-
Step 500
500
#00A544
oklch(63% 0.18 148.5)
-
Step 600
600
#008B38
oklch(55.6% 0.159 148.5)
-
Step 700
700
#00752E
oklch(49.1% 0.14 148.5)
-
Step 800
800
#006024
oklch(42.7% 0.122 148.4)
-
Step 900
900
#00501D
oklch(37.6% 0.108 148.5)
-
Step 950
950
#00300E
oklch(27% 0.077 148.3)
#3FC161 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) | #C3B059 | 0.142 |
| Deuteranopia (no green cones) | #B3A568 | 0.141 |
| Tritanopia (no blue cones) | #00BDAB | 0.101 |
| Achromatopsia (no color) | #AAAAAA | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FC161
#3FC161
oklch(71.8% 0.176 148.4)
- #DE77DA
#DE77DA
oklch(71.9% 0.176 328.7)
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 #3FC161, closest first.
No curated palette has a color within ΔE 0.04 of #3FC161.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.016
- Dark Mint #48C072 ΔE 0.023
- Dark Mint Green #20C073 ΔE 0.023
- Cool Green #33B864 ΔE 0.029
- Shamrock Green #02C14D ΔE 0.031
- Leafy Green #51B73B ΔE 0.037
- Turtle Green #75B84F ΔE 0.043
- Seaweed #18D17B ΔE 0.045
Use #3FC161 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.