#3DD17C
Closest named color: Seaweed (#18D17B). oklch(76.4% 0.173 153.4), rgb(61, 209, 124).
Aa
Black text reads best on this color (10.60:1).
About this color
#3DD17C is a medium-light, vivid green. In OKLCH its lightness is 76%, its chroma 0.173 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.012 away. Black text reads best on it, at 10.60:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.60:1 |
| White text | 1.97:1 |
Values
| HEX | #3DD17C |
| RGB | rgb(61, 209, 124) |
| HSL | hsl(146, 62%, 53%) |
| OKLCH | oklch(76.4% 0.173 153.4) |
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 #3DD17C | 1.97:1 | Fails | Lc -42.2 | Non-text elements, placeholder text |
| Black text on #3DD17C | 10.60:1 | AAA | Lc 66.1 | Content text, not long reading |
| #3DD17C text on white | 1.97:1 | Fails | Lc 37.8 | Non-text elements, placeholder text |
| #3DD17C text on black | 10.60:1 | AAA | Lc -64.6 | 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
#EAFAEE
oklch(97% 0.023 153.5)
-
Step 100
100
#D1F4DB
oklch(93.5% 0.049 154.3)
-
Step 200
200
#A7ECBC
oklch(88.4% 0.096 153.7)
-
Step 300
300 (this color)
#3DD17C
oklch(76.4% 0.173 153.4)
-
Step 400
400
#00BF68
oklch(70.6% 0.18 153.4)
-
Step 500
500
#00A458
oklch(63% 0.161 153.3)
-
Step 600
600
#008A49
oklch(55.5% 0.142 153.3)
-
Step 700
700
#00743D
oklch(49% 0.125 153.5)
-
Step 800
800
#005F31
oklch(42.6% 0.108 153.6)
-
Step 900
900
#005028
oklch(37.8% 0.097 153.4)
-
Step 950
950
#003015
oklch(27.1% 0.07 152.9)
#3DD17C 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) | #D1C076 | 0.151 |
| Deuteranopia (no green cones) | #BFB382 | 0.148 |
| Tritanopia (no blue cones) | #00CEBC | 0.089 |
| Achromatopsia (no color) | #B8B8B8 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3DD17C
#3DD17C
oklch(76.4% 0.173 153.4)
- #F284E0
#F284E0
oklch(76.3% 0.173 333.5)
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 #3DD17C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.012
- Emerald #06D6A0 ΔE 0.043
- Algae Green #21C36F ΔE 0.044
- Aqua Green #12E193 ΔE 0.044
- Dark Mint #48C072 ΔE 0.046
- Soft Green #6FC276 ΔE 0.048
- Greenblue #23C48B ΔE 0.049
- Dark Mint Green #20C073 ΔE 0.051
Use #3DD17C 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.