#3FDBBF
Closest named color: Turquoise (#40E0D0). oklch(80.5% 0.133 177.8), rgb(63, 219, 191).
Aa
Black text reads best on this color (12.09:1).
About this color
#3FDBBF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 80%, its chroma 0.133 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.024 away. Black text reads best on it, at 12.09:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 12.09:1 |
| White text | 1.73:1 |
Values
| HEX | #3FDBBF |
| RGB | rgb(63, 219, 191) |
| HSL | hsl(169, 68%, 55%) |
| OKLCH | oklch(80.5% 0.133 177.8) |
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 #3FDBBF | 1.73:1 | Fails | Lc -34.9 | Non-text elements, placeholder text |
| Black text on #3FDBBF | 12.09:1 | AAA | Lc 72.8 | Content text, not long reading |
| #3FDBBF text on white | 1.73:1 | Fails | Lc 31.1 | Non-text elements, placeholder text |
| #3FDBBF text on black | 12.09:1 | AAA | Lc -71.7 | 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 300.
-
Step 50
50
#EAFAF5
oklch(97.2% 0.018 175.3)
-
Step 100
100
#D0F3EA
oklch(93.7% 0.038 178.2)
-
Step 200
200
#A3EAD9
oklch(88.5% 0.075 177.9)
-
Step 300
300 (this color)
#3FDBBF
oklch(80.5% 0.133 177.8)
-
Step 400
400
#00BAA0
oklch(70.6% 0.13 177.9)
-
Step 500
500
#00A089
oklch(63.1% 0.116 177.6)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#3FDBBF 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) | #D2CEBE | 0.140 |
| Deuteranopia (no green cones) | #BDBEC1 | 0.134 |
| Tritanopia (no blue cones) | #00DED3 | 0.027 |
| Achromatopsia (no color) | #C4C4C4 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FDBBF
#3FDBBF
oklch(80.5% 0.133 177.8)
- #FF9DBF
#FF9DBF
oklch(80.5% 0.123 357.9)
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 #3FDBBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.024
- Medium Turquoise #48D1CC ΔE 0.039
- Aqua Marine #2EE8BB ΔE 0.039
- Seafoam Blue #78D1B6 ΔE 0.041
- Medium Aquamarine #66CDAA ΔE 0.041
- Emerald #06D6A0 ΔE 0.047
- Dark Turquoise #00CED1 ΔE 0.054
- Pale Teal #82CBB2 ΔE 0.056
Use #3FDBBF 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.