#3FC05E
Closest named color: Algae Green (#21C36F). oklch(71.5% 0.178 147.9), rgb(63, 192, 94).
Aa
Black text reads best on this color (8.91:1).
About this color
#3FC05E is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.178 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 0.019 away. Black text reads best on it, at 8.91:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 8.91:1 |
| White text | 2.35:1 |
Values
| HEX | #3FC05E |
| RGB | rgb(63, 192, 94) |
| HSL | hsl(134, 51%, 50%) |
| OKLCH | oklch(71.5% 0.178 147.9) |
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 #3FC05E | 2.35:1 | Fails | Lc -50.9 | Large or bold text, headings |
| Black text on #3FC05E | 8.91:1 | AAA | Lc 58.0 | Large or bold text, headings |
| #3FC05E text on white | 2.35:1 | Fails | Lc 46.0 | Large or bold text, headings |
| #3FC05E text on black | 8.91:1 | AAA | Lc -56.0 | 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
#BFE5C3
oklch(88.6% 0.061 147.9)
-
Step 300
300
#8ED598
oklch(81% 0.111 148)
-
Step 400
400 (this color)
#3FC05E
oklch(71.5% 0.178 147.9)
-
Step 500
500
#00A641
oklch(63.2% 0.184 147.9)
-
Step 600
600
#008B35
oklch(55.5% 0.161 147.8)
-
Step 700
700
#00752C
oklch(49% 0.142 148)
-
Step 800
800
#006022
oklch(42.6% 0.124 147.8)
-
Step 900
900
#00501B
oklch(37.6% 0.109 147.8)
-
Step 950
950
#00300D
oklch(27% 0.078 147.8)
#3FC05E 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) | #C2AF56 | 0.142 |
| Deuteranopia (no green cones) | #B2A465 | 0.140 |
| Tritanopia (no blue cones) | #06BCA9 | 0.102 |
| Achromatopsia (no color) | #A9A9A9 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FC05E
#3FC05E
oklch(71.5% 0.178 147.9)
- #DD76DB
#DD76DB
oklch(71.6% 0.178 327.9)
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 #3FC05E, closest first.
No curated palette has a color within ΔE 0.04 of #3FC05E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.019
- Dark Mint Green #20C073 ΔE 0.025
- Dark Mint #48C072 ΔE 0.025
- Cool Green #33B864 ΔE 0.028
- Shamrock Green #02C14D ΔE 0.028
- Leafy Green #51B73B ΔE 0.034
- Turtle Green #75B84F ΔE 0.042
- Shamrock #01B44C ΔE 0.045
Use #3FC05E 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.