#3FA6EC
Closest named color: Chefchaouen Blue (#4895EF). oklch(69.7% 0.139 242.6), rgb(63, 166, 236).
Aa
Black text reads best on this color (7.87:1).
About this color
#3FA6EC is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.139 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.047 away. Black text reads best on it, at 7.87:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.87:1 |
| White text | 2.66:1 |
Values
| HEX | #3FA6EC |
| RGB | rgb(63, 166, 236) |
| HSL | hsl(204, 82%, 59%) |
| OKLCH | oklch(69.7% 0.139 242.6) |
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 #3FA6EC | 2.66:1 | Fails | Lc -56.7 | Large or bold text, headings |
| Black text on #3FA6EC | 7.87:1 | AAA | Lc 52.5 | Large or bold text, headings |
| #3FA6EC text on white | 2.66:1 | Fails | Lc 51.5 | Large or bold text, headings |
| #3FA6EC text on black | 7.87:1 | AAA | Lc -50.4 | Large or bold text, headings |
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
#EFF7FD
oklch(97.2% 0.012 239.9)
-
Step 100
100
#DCECFA
oklch(93.5% 0.026 244.4)
-
Step 200
200
#BEDEF7
oklch(88.5% 0.048 241.7)
-
Step 300
300
#8EC8F4
oklch(80.9% 0.087 241.8)
-
Step 400
400 (this color)
#3FA6EC
oklch(69.7% 0.139 242.6)
-
Step 500
500
#0091DC
oklch(63% 0.151 242.6)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00669D
oklch(49% 0.118 242.7)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#3FA6EC 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) | #86A7EF | 0.066 |
| Deuteranopia (no green cones) | #6E97EB | 0.052 |
| Tritanopia (no blue cones) | #00B7BF | 0.096 |
| Achromatopsia (no color) | #9E9E9E | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA6EC
#3FA6EC
oklch(69.7% 0.139 242.6)
- #D98832
#D98832
oklch(69.7% 0.139 62.9)
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 #3FA6EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.051
- Dark Sky Blue #448EE4 ΔE 0.064
- Deep Sky Blue #00BFFF ΔE 0.066
- Dodger Blue #1E90FF ΔE 0.074
- Turquoise Blue #06B1C4 ΔE 0.078
- Soft Blue #6488EA ΔE 0.081
- Periwinkle Blue #8F99FB ΔE 0.087
Use #3FA6EC 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.