#3FBCFC
Closest named color: Deep Sky Blue (#00BFFF). oklch(75.5% 0.141 235.8), rgb(63, 188, 252).
Aa
Black text reads best on this color (9.81:1).
About this color
#3FBCFC is a medium-light, vivid blue. In OKLCH its lightness is 75%, its chroma 0.141 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.016 away. Black text reads best on it, at 9.81:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.81:1 |
| White text | 2.14:1 |
Values
| HEX | #3FBCFC |
| RGB | rgb(63, 188, 252) |
| HSL | hsl(200, 97%, 62%) |
| OKLCH | oklch(75.5% 0.141 235.8) |
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 #3FBCFC | 2.14:1 | Fails | Lc -46.3 | Large or bold text, headings |
| Black text on #3FBCFC | 9.81:1 | AAA | Lc 62.3 | Content text, not long reading |
| #3FBCFC text on white | 2.14:1 | Fails | Lc 41.6 | Non-text elements, placeholder text |
| #3FBCFC text on black | 9.81:1 | AAA | Lc -60.6 | 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
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DBEDF9
oklch(93.6% 0.025 236.8)
-
Step 200
200
#BBDFF6
oklch(88.5% 0.049 236.2)
-
Step 300
300
#87CAF2
oklch(80.9% 0.088 235.6)
-
Step 400
400 (this color)
#3FBCFC
oklch(75.5% 0.141 235.8)
-
Step 500
500
#0094D0
oklch(63.1% 0.136 236.2)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#3FBCFC 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) | #9DBBFF | 0.084 |
| Deuteranopia (no green cones) | #84A9FB | 0.070 |
| Tritanopia (no blue cones) | #00CDD2 | 0.090 |
| Achromatopsia (no color) | #B1B1B1 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FBCFC
#3FBCFC
oklch(75.5% 0.141 235.8)
- #F2964F
#F2964F
oklch(75.5% 0.14 56.1)
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 #3FBCFC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.016
- Bright Sky Blue #02CCFE ΔE 0.043
- Vivid Sky Blue #4CC9F0 ΔE 0.046
- Lightblue #7BC8F6 ΔE 0.061
- Carolina Blue #8AB8FE ΔE 0.062
- Sky #82CAFC ΔE 0.069
- Light Sky Blue #87CEFA ΔE 0.081
- Sky Blue #87CEEB ΔE 0.086
Use #3FBCFC 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.