#3FC39E
Closest named color: Greenblue (#23C48B). oklch(73.6% 0.126 170.4), rgb(63, 195, 158).
Aa
Black text reads best on this color (9.51:1).
About this color
#3FC39E is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.126 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.032 away. Black text reads best on it, at 9.51:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Greenblue (#23C48B) |
| Black text | 9.51:1 |
| White text | 2.20:1 |
Values
| HEX | #3FC39E |
| RGB | rgb(63, 195, 158) |
| HSL | hsl(163, 52%, 51%) |
| OKLCH | oklch(73.6% 0.126 170.4) |
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 #3FC39E | 2.20:1 | Fails | Lc -47.9 | Large or bold text, headings |
| Black text on #3FC39E | 9.51:1 | AAA | Lc 60.9 | Content text, not long reading |
| #3FC39E text on white | 2.20:1 | Fails | Lc 43.1 | Non-text elements, placeholder text |
| #3FC39E text on black | 9.51:1 | AAA | Lc -59.1 | 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
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DCEFE8
oklch(93.6% 0.022 171.8)
-
Step 200
200
#BDE3D5
oklch(88.5% 0.044 170.9)
-
Step 300
300
#8CD2B9
oklch(81% 0.079 169.9)
-
Step 400
400 (this color)
#3FC39E
oklch(73.6% 0.126 170.4)
-
Step 500
500
#00A17E
oklch(63.1% 0.125 170.2)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#002F23
oklch(27.2% 0.053 170.5)
#3FC39E 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) | #BEB69C | 0.130 |
| Deuteranopia (no green cones) | #ACA9A1 | 0.125 |
| Tritanopia (no blue cones) | #00C4B8 | 0.037 |
| Achromatopsia (no color) | #AEAEAE | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FC39E
#3FC39E
oklch(73.6% 0.126 170.4)
- #E587B4
#E587B4
oklch(73.6% 0.126 350.5)
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 #3FC39E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.032
- Green Blue #01C08D ΔE 0.033
- Topaz #13BBAF ΔE 0.042
- Medium Aquamarine #66CDAA ΔE 0.044
- Greeny Blue #42B395 ΔE 0.045
- Emerald #06D6A0 ΔE 0.054
- Dark Mint #48C072 ΔE 0.056
- Soft Green #6FC276 ΔE 0.056
Use #3FC39E 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.