#3FA3EA
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.9% 0.139 243.6), rgb(63, 163, 234).
Aa
Black text reads best on this color (7.63:1).
About this color
#3FA3EA is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.139 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.040 away. Black text reads best on it, at 7.63:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.63:1 |
| White text | 2.74:1 |
Values
| HEX | #3FA3EA |
| RGB | rgb(63, 163, 234) |
| HSL | hsl(205, 80%, 58%) |
| OKLCH | oklch(68.9% 0.139 243.6) |
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 #3FA3EA | 2.74:1 | Fails | Lc -58.0 | Large or bold text, headings |
| Black text on #3FA3EA | 7.63:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #3FA3EA text on white | 2.74:1 | Fails | Lc 52.8 | Large or bold text, headings |
| #3FA3EA text on black | 7.63:1 | AAA | Lc -49.1 | 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
#BFDEF7
oklch(88.6% 0.048 242.5)
-
Step 300
300
#8FC7F5
oklch(80.8% 0.088 243.9)
-
Step 400
400 (this color)
#3FA3EA
oklch(68.9% 0.139 243.6)
-
Step 500
500
#0091DF
oklch(63.2% 0.154 243.6)
-
Step 600
600
#007ABC
oklch(55.7% 0.136 243.3)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#00456E
oklch(37.6% 0.092 243.7)
-
Step 950
950
#002944
oklch(27% 0.066 243.6)
#3FA3EA 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) | #82A5ED | 0.063 |
| Deuteranopia (no green cones) | #6B95E9 | 0.048 |
| Tritanopia (no blue cones) | #00B4BC | 0.097 |
| Achromatopsia (no color) | #9C9C9C | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA3EA
#3FA3EA
oklch(68.9% 0.139 243.6)
- #D6862D
#D6862D
oklch(68.9% 0.139 63.8)
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 #3FA3EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.040
- Cornflower Blue #6495ED ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.069
- Soft Blue #6488EA ΔE 0.074
- Deep Sky Blue #00BFFF ΔE 0.074
- Turquoise Blue #06B1C4 ΔE 0.081
- Faded Blue #658CBB ΔE 0.083
Use #3FA3EA 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.