#3ECF7F
Closest named color: Seaweed (#18D17B). oklch(75.9% 0.168 154.5), rgb(62, 207, 127).
Aa
Black text reads best on this color (10.43:1).
About this color
#3ECF7F is a medium-light, vivid green. In OKLCH its lightness is 76%, its chroma 0.168 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.015 away. Black text reads best on it, at 10.43:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.43:1 |
| White text | 2.01:1 |
Values
| HEX | #3ECF7F |
| RGB | rgb(62, 207, 127) |
| HSL | hsl(147, 60%, 53%) |
| OKLCH | oklch(75.9% 0.168 154.5) |
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 #3ECF7F | 2.01:1 | Fails | Lc -43.0 | Non-text elements, placeholder text |
| Black text on #3ECF7F | 10.43:1 | AAA | Lc 65.3 | Content text, not long reading |
| #3ECF7F text on white | 2.01:1 | Fails | Lc 38.6 | Non-text elements, placeholder text |
| #3ECF7F text on black | 10.43:1 | AAA | Lc -63.8 | Content text, not long reading |
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 300.
-
Step 50
50
#EAFAEF
oklch(97% 0.022 155.9)
-
Step 100
100
#D2F4DC
oklch(93.6% 0.048 154.6)
-
Step 200
200
#A8ECBE
oklch(88.5% 0.093 154.5)
-
Step 300
300 (this color)
#3ECF7F
oklch(75.9% 0.168 154.5)
-
Step 400
400
#00BF6C
oklch(70.6% 0.176 154.5)
-
Step 500
500
#00A45C
oklch(63.1% 0.158 154.5)
-
Step 600
600
#008A4C
oklch(55.6% 0.139 154.3)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#3ECF7F 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) | #CFBE7A | 0.149 |
| Deuteranopia (no green cones) | #BDB284 | 0.145 |
| Tritanopia (no blue cones) | #00CDBB | 0.083 |
| Achromatopsia (no color) | #B7B7B7 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3ECF7F
#3ECF7F
oklch(75.9% 0.168 154.5)
- #F084DC
#F084DC
oklch(75.9% 0.169 334.4)
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 #3ECF7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.015
- Emerald #06D6A0 ΔE 0.040
- Algae Green #21C36F ΔE 0.040
- Dark Mint #48C072 ΔE 0.041
- Greenblue #23C48B ΔE 0.042
- Soft Green #6FC276 ΔE 0.043
- Dark Mint Green #20C073 ΔE 0.047
- Aqua Green #12E193 ΔE 0.048
Use #3ECF7F 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.