#3694D7
Closest named color: Dark Sky Blue (#448EE4). oklch(64.2% 0.133 243.9), rgb(54, 148, 215).
Aa
Black text reads best on this color (6.37:1).
About this color
#3694D7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.133 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.030 away. Black text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.37:1 |
| White text | 3.29:1 |
Values
| HEX | #3694D7 |
| RGB | rgb(54, 148, 215) |
| HSL | hsl(205, 67%, 53%) |
| OKLCH | oklch(64.2% 0.133 243.9) |
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 #3694D7 | 3.29:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #3694D7 | 6.37:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #3694D7 text on white | 3.29:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #3694D7 text on black | 6.37:1 | AA | Lc -41.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C6DCF0
oklch(88.4% 0.036 245.7)
-
Step 300
300
#9DC6E8
oklch(80.9% 0.065 243.7)
-
Step 400
400
#65A8DD
oklch(70.8% 0.104 243.9)
-
Step 500
500 (this color)
#3694D7
oklch(64.2% 0.133 243.9)
-
Step 600
600
#0079BD
oklch(55.5% 0.138 244.2)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#0A456C
oklch(37.6% 0.087 244.3)
-
Step 950
950
#0A293F
oklch(27.1% 0.054 243.5)
#3694D7 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) | #7596DA | 0.059 |
| Deuteranopia (no green cones) | #5F87D6 | 0.045 |
| Tritanopia (no blue cones) | #00A4AC | 0.092 |
| Achromatopsia (no color) | #8E8E8E | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3694D7
#3694D7
oklch(64.2% 0.133 243.9)
- #C47923
#C47923
oklch(64.3% 0.133 63.9)
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 #3694D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.030
- Chefchaouen Blue #4895EF ΔE 0.040
- Water Blue #0E87CC ΔE 0.045
- Cornflower Blue #6495ED ΔE 0.053
- Faded Blue #658CBB ΔE 0.054
- Cool Blue #4984B8 ΔE 0.056
- Soft Blue #6488EA ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.064
Use #3694D7 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.