#3BC066
Closest named color: Algae Green (#21C36F). oklch(71.6% 0.172 150.1), rgb(59, 192, 102).
Aa
Black text reads best on this color (8.91:1).
About this color
#3BC066 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.172 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.012 away. Black text reads best on it, at 8.91:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 8.91:1 |
| White text | 2.35:1 |
Values
| HEX | #3BC066 |
| RGB | rgb(59, 192, 102) |
| HSL | hsl(139, 53%, 49%) |
| OKLCH | oklch(71.6% 0.172 150.1) |
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 #3BC066 | 2.35:1 | Fails | Lc -50.9 | Large or bold text, headings |
| Black text on #3BC066 | 8.91:1 | AAA | Lc 58.0 | Large or bold text, headings |
| #3BC066 text on white | 2.35:1 | Fails | Lc 46.0 | Large or bold text, headings |
| #3BC066 text on black | 8.91:1 | AAA | Lc -56.1 | 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
#DCF0DF
oklch(93.6% 0.031 149.8)
-
Step 200
200
#BEE5C5
oklch(88.5% 0.06 150.3)
-
Step 300
300
#8DD49C
oklch(80.8% 0.106 150.1)
-
Step 400
400 (this color)
#3BC066
oklch(71.6% 0.172 150.1)
-
Step 500
500
#00A54C
oklch(63.1% 0.173 150.1)
-
Step 600
600
#008B3F
oklch(55.7% 0.153 150.2)
-
Step 700
700
#007533
oklch(49.1% 0.136 149.9)
-
Step 800
800
#006029
oklch(42.7% 0.118 150)
-
Step 900
900
#005021
oklch(37.7% 0.104 150)
-
Step 950
950
#003011
oklch(27% 0.074 150)
#3BC066 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) | #C1B05F | 0.142 |
| Deuteranopia (no green cones) | #B1A46C | 0.141 |
| Tritanopia (no blue cones) | #00BDAB | 0.095 |
| Achromatopsia (no color) | #A9A9A9 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BC066
#3BC066
oklch(71.6% 0.172 150.1)
- #DD77D6
#DD77D6
oklch(71.6% 0.172 329.8)
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 #3BC066, closest first.
No curated palette has a color within ΔE 0.04 of #3BC066.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.012
- Dark Mint Green #20C073 ΔE 0.017
- Dark Mint #48C072 ΔE 0.018
- Cool Green #33B864 ΔE 0.024
- Shamrock Green #02C14D ΔE 0.035
- Leafy Green #51B73B ΔE 0.041
- Boring Green #63B365 ΔE 0.043
- Greenblue #23C48B ΔE 0.043
Use #3BC066 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.