#3FDAF7
Closest named color: Aqua Blue (#02D8E9). oklch(82.2% 0.13 213.3), rgb(63, 218, 247).
Aa
Black text reads best on this color (12.58:1).
About this color
#3FDAF7 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.130 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.027 away. Black text reads best on it, at 12.58:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.58:1 |
| White text | 1.66:1 |
Values
| HEX | #3FDAF7 |
| RGB | rgb(63, 218, 247) |
| HSL | hsl(189, 92%, 61%) |
| OKLCH | oklch(82.2% 0.13 213.3) |
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 #3FDAF7 | 1.66:1 | Fails | Lc -32.6 | Non-text elements, placeholder text |
| Black text on #3FDAF7 | 12.58:1 | AAA | Lc 74.9 | Content text, not long reading |
| #3FDAF7 text on white | 1.66:1 | Fails | Lc 29.0 | Dividers and decoration only |
| #3FDAF7 text on black | 12.58:1 | AAA | Lc -73.9 | 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
#E9F9FD
oklch(97.1% 0.018 214.4)
-
Step 100
100
#CEF1F9
oklch(93.6% 0.038 213.1)
-
Step 200
200
#A1E6F6
oklch(88.5% 0.072 213.8)
-
Step 300
300 (this color)
#3FDAF7
oklch(82.2% 0.13 213.3)
-
Step 400
400
#00B4CF
oklch(70.8% 0.124 213.4)
-
Step 500
500
#009AB1
oklch(63% 0.11 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#3FDAF7 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) | #C4D3F9 | 0.118 |
| Deuteranopia (no green cones) | #ABC0F7 | 0.107 |
| Tritanopia (no blue cones) | #00E5E3 | 0.050 |
| Achromatopsia (no color) | #C8C8C8 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FDAF7
#3FDAF7
oklch(82.2% 0.13 213.3)
- #FFAD9A
#FFAD9A
oklch(82.2% 0.101 33.6)
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 #3FDAF7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.027
- Vivid Sky Blue #4CC9F0 ΔE 0.045
- Bright Sky Blue #02CCFE ΔE 0.047
- Sky Blue #87CEEB ΔE 0.053
- Light Sky Blue #87CEFA ΔE 0.057
- Lightblue #7BC8F6 ΔE 0.058
- Medium Turquoise #48D1CC ΔE 0.060
- Sky #82CAFC ΔE 0.061
Use #3FDAF7 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.