#3FBEFE
Closest named color: Deep Sky Blue (#00BFFF). oklch(76% 0.142 235.5), rgb(63, 190, 254).
Aa
Black text reads best on this color (10.00:1).
About this color
#3FBEFE is a medium-light, vivid blue. In OKLCH its lightness is 76%, its chroma 0.142 and its hue 235°. 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 10.00:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 10.00:1 |
| White text | 2.09:1 |
Values
| HEX | #3FBEFE |
| RGB | rgb(63, 190, 254) |
| HSL | hsl(200, 99%, 62%) |
| OKLCH | oklch(76% 0.142 235.5) |
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 #3FBEFE | 2.09:1 | Fails | Lc -45.2 | Large or bold text, headings |
| Black text on #3FBEFE | 10.00:1 | AAA | Lc 63.3 | Content text, not long reading |
| #3FBEFE text on white | 2.09:1 | Fails | Lc 40.7 | Non-text elements, placeholder text |
| #3FBEFE text on black | 10.00:1 | AAA | Lc -61.6 | 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 300.
-
Step 50
50
#ECF7FF
oklch(97% 0.016 239.1)
-
Step 100
100
#D4EEFF
oklch(93.5% 0.036 236.5)
-
Step 200
200
#B0E1FF
oklch(88.6% 0.065 235.4)
-
Step 300
300 (this color)
#3FBEFE
oklch(76% 0.142 235.5)
-
Step 400
400
#00ADF1
oklch(70.7% 0.151 235.7)
-
Step 500
500
#0094CF
oklch(63% 0.135 235.8)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
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
#002A3E
oklch(26.9% 0.057 235.2)
#3FBEFE 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) | #9FBDFF | 0.085 |
| Deuteranopia (no green cones) | #85ABFD | 0.070 |
| Tritanopia (no blue cones) | #00CFD4 | 0.090 |
| Achromatopsia (no color) | #B3B3B3 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FBEFE
#3FBEFE
oklch(76% 0.142 235.5)
- #F59750
#F59750
oklch(76.1% 0.142 55.6)
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 #3FBEFE, 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 0.039
- Vivid Sky Blue #4CC9F0 ΔE 0.042
- Lightblue #7BC8F6 ΔE 0.057
- Carolina Blue #8AB8FE ΔE 0.061
- Sky #82CAFC ΔE 0.065
- Light Sky Blue #87CEFA ΔE 0.077
- Sky Blue #87CEEB ΔE 0.083
Use #3FBEFE 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.