#3BC4F3
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(76.8% 0.131 225.9), rgb(59, 196, 243).
Aa
Black text reads best on this color (10.37:1).
About this color
#3BC4F3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.131 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.019 away. Black text reads best on it, at 10.37:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.37:1 |
| White text | 2.02:1 |
Values
| HEX | #3BC4F3 |
| RGB | rgb(59, 196, 243) |
| HSL | hsl(195, 88%, 59%) |
| OKLCH | oklch(76.8% 0.131 225.9) |
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 #3BC4F3 | 2.02:1 | Fails | Lc -43.4 | Non-text elements, placeholder text |
| Black text on #3BC4F3 | 10.37:1 | AAA | Lc 65.0 | Content text, not long reading |
| #3BC4F3 text on white | 2.02:1 | Fails | Lc 38.9 | Non-text elements, placeholder text |
| #3BC4F3 text on black | 10.37:1 | AAA | Lc -63.5 | 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
#EAF8FF
oklch(97.1% 0.018 229)
-
Step 100
100
#D0F0FE
oklch(93.6% 0.038 226)
-
Step 200
200
#A5E4FE
oklch(88.5% 0.073 225.5)
-
Step 300
300 (this color)
#3BC4F3
oklch(76.8% 0.131 225.9)
-
Step 400
400
#00B1E0
oklch(70.8% 0.135 225.5)
-
Step 500
500
#0097C1
oklch(63% 0.121 226.4)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#3BC4F3 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) | #AAC0F5 | 0.098 |
| Deuteranopia (no green cones) | #92AEF2 | 0.087 |
| Tritanopia (no blue cones) | #00D2D3 | 0.071 |
| Achromatopsia (no color) | #B6B6B6 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BC4F3
#3BC4F3
oklch(76.8% 0.131 225.9)
- #F89869
#F89869
oklch(76.9% 0.131 46.3)
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 #3BC4F3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.019
- Bright Sky Blue #02CCFE ΔE 0.024
- Deep Sky Blue #00BFFF ΔE 0.029
- Lightblue #7BC8F6 ΔE 0.049
- Sky #82CAFC ΔE 0.059
- Aqua Blue #02D8E9 ΔE 0.062
- Dark Turquoise #00CED1 ΔE 0.067
- Light Sky Blue #87CEFA ΔE 0.067
Use #3BC4F3 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.