#3FC8A6
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.1% 0.127 172.6), rgb(63, 200, 166).
Aa
Black text reads best on this color (10.02:1).
About this color
#3FC8A6 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.127 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.032 away. Black text reads best on it, at 10.02:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.02:1 |
| White text | 2.09:1 |
Values
| HEX | #3FC8A6 |
| RGB | rgb(63, 200, 166) |
| HSL | hsl(165, 55%, 52%) |
| OKLCH | oklch(75.1% 0.127 172.6) |
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 #3FC8A6 | 2.09:1 | Fails | Lc -45.2 | Large or bold text, headings |
| Black text on #3FC8A6 | 10.02:1 | AAA | Lc 63.3 | Content text, not long reading |
| #3FC8A6 text on white | 2.09:1 | Fails | Lc 40.6 | Non-text elements, placeholder text |
| #3FC8A6 text on black | 10.02:1 | AAA | Lc -61.7 | 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 400.
-
Step 50
50
#EFF8F5
oklch(97.2% 0.01 174.3)
-
Step 100
100
#DBEFE8
oklch(93.5% 0.023 172.8)
-
Step 200
200
#BDE3D6
oklch(88.5% 0.044 172.5)
-
Step 300
300
#8AD2BB
oklch(81% 0.08 172.1)
-
Step 400
400 (this color)
#3FC8A6
oklch(75.1% 0.127 172.6)
-
Step 500
500
#00A182
oklch(63.2% 0.122 172.6)
-
Step 600
600
#00876D
oklch(55.6% 0.107 172.9)
-
Step 700
700
#00725B
oklch(49.2% 0.095 172.3)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3E
oklch(37.8% 0.073 172.9)
-
Step 950
950
#002E24
oklch(26.9% 0.051 173.7)
#3FC8A6 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) | #C2BBA4 | 0.132 |
| Deuteranopia (no green cones) | #AFADA8 | 0.126 |
| Tritanopia (no blue cones) | #00CABE | 0.034 |
| Achromatopsia (no color) | #B3B3B3 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FC8A6
#3FC8A6
oklch(75.1% 0.127 172.6)
- #EC8BB6
#EC8BB6
oklch(75.1% 0.128 352.6)
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 #3FC8A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.032
- Greenblue #23C48B ΔE 0.041
- Green Blue #01C08D ΔE 0.045
- Emerald #06D6A0 ΔE 0.045
- Topaz #13BBAF ΔE 0.048
- Medium Turquoise #48D1CC ΔE 0.055
- Seafoam Blue #78D1B6 ΔE 0.056
- Pale Teal #82CBB2 ΔE 0.058
Use #3FC8A6 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.