#3FCAB6
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.1% 0.121 181.3), rgb(63, 202, 182).
Aa
Black text reads best on this color (10.33:1).
About this color
#3FCAB6 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.121 and its hue 181°. 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 10.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.33:1 |
| White text | 2.03:1 |
Values
| HEX | #3FCAB6 |
| RGB | rgb(63, 202, 182) |
| HSL | hsl(171, 57%, 52%) |
| OKLCH | oklch(76.1% 0.121 181.3) |
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 #3FCAB6 | 2.03:1 | Fails | Lc -43.6 | Non-text elements, placeholder text |
| Black text on #3FCAB6 | 10.33:1 | AAA | Lc 64.8 | Content text, not long reading |
| #3FCAB6 text on white | 2.03:1 | Fails | Lc 39.1 | Non-text elements, placeholder text |
| #3FCAB6 text on black | 10.33:1 | AAA | Lc -63.2 | 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
#EAF9F6
oklch(97% 0.016 182.7)
-
Step 100
100
#D2F2EB
oklch(93.6% 0.035 180.9)
-
Step 200
200
#A8E8DC
oklch(88.5% 0.067 181.8)
-
Step 300
300 (this color)
#3FCAB6
oklch(76.1% 0.121 181.3)
-
Step 400
400
#00BAA5
oklch(70.7% 0.128 180.9)
-
Step 500
500
#009F8E
oklch(63% 0.113 181.8)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#3FCAB6 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) | #C1BEB5 | 0.128 |
| Deuteranopia (no green cones) | #ADB0B8 | 0.121 |
| Tritanopia (no blue cones) | #00CEC4 | 0.022 |
| Achromatopsia (no color) | #B6B6B6 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FCAB6
#3FCAB6
oklch(76.1% 0.121 181.3)
- #F090AC
#F090AC
oklch(76.1% 0.12 1.5)
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 #3FCAB6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.032
- Medium Turquoise #48D1CC ΔE 0.034
- Dark Turquoise #00CED1 ΔE 0.037
- Seafoam Blue #78D1B6 ΔE 0.048
- Topaz #13BBAF ΔE 0.048
- Pale Teal #82CBB2 ΔE 0.050
- Emerald #06D6A0 ΔE 0.055
- Greenblue #23C48B ΔE 0.062
Use #3FCAB6 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.