#3693D2
Closest named color: Dark Sky Blue (#448EE4). oklch(63.7% 0.128 242.6), rgb(54, 147, 210).
Aa
Black text reads best on this color (6.26:1).
About this color
#3693D2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.128 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.035 away. Black text reads best on it, at 6.26:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.26:1 |
| White text | 3.35:1 |
Values
| HEX | #3693D2 |
| RGB | rgb(54, 147, 210) |
| HSL | hsl(204, 63%, 52%) |
| OKLCH | oklch(63.7% 0.128 242.6) |
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 #3693D2 | 3.35:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #3693D2 | 6.26:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #3693D2 text on white | 3.35:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #3693D2 text on black | 6.26:1 | AA | Lc -41.1 | 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
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DCEF
oklch(88.4% 0.035 244.2)
-
Step 300
300
#9EC6E6
oklch(80.9% 0.062 242.7)
-
Step 400
400
#66A8DA
oklch(70.7% 0.1 242.7)
-
Step 500
500 (this color)
#3693D2
oklch(63.7% 0.128 242.6)
-
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
#0C466A
oklch(37.8% 0.083 242.3)
-
Step 950
950
#0A293E
oklch(27% 0.053 242.3)
#3693D2 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) | #7694D5 | 0.061 |
| Deuteranopia (no green cones) | #6086D1 | 0.046 |
| Tritanopia (no blue cones) | #00A3A9 | 0.090 |
| Achromatopsia (no color) | #8C8C8C | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3693D2
#3693D2
oklch(63.7% 0.128 242.6)
- #C1782A
#C1782A
oklch(63.8% 0.128 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 #3693D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.035
- Water Blue #0E87CC ΔE 0.041
- Chefchaouen Blue #4895EF ΔE 0.047
- Faded Blue #658CBB ΔE 0.049
- Cool Blue #4984B8 ΔE 0.050
- Blue NCS #118AB2 ΔE 0.057
- Steel Blue #4682B4 ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.059
Use #3693D2 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.