#3394DA
Closest named color: Dark Sky Blue (#448EE4). oklch(64.3% 0.137 244.5), rgb(51, 148, 218).
Aa
Black text reads best on this color (6.38:1).
About this color
#3394DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.137 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.027 away. Black text reads best on it, at 6.38:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.38:1 |
| White text | 3.28:1 |
Values
| HEX | #3394DA |
| RGB | rgb(51, 148, 218) |
| HSL | hsl(205, 69%, 53%) |
| OKLCH | oklch(64.3% 0.137 244.5) |
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 #3394DA | 3.28:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #3394DA | 6.38:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #3394DA text on white | 3.28:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #3394DA text on black | 6.38:1 | AA | Lc -41.9 | 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
#C5DCF1
oklch(88.4% 0.038 245.8)
-
Step 300
300
#9CC6EA
oklch(80.9% 0.068 244.6)
-
Step 400
400
#63A7DF
oklch(70.6% 0.108 245)
-
Step 500
500 (this color)
#3394DA
oklch(64.3% 0.137 244.5)
-
Step 600
600
#0079BE
oklch(55.6% 0.139 244.6)
-
Step 700
700
#0066A1
oklch(49.2% 0.123 244.5)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#07456D
oklch(37.7% 0.089 244.4)
-
Step 950
950
#092940
oklch(27.1% 0.056 244.1)
#3394DA 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) | #7496DD | 0.060 |
| Deuteranopia (no green cones) | #5C87D9 | 0.044 |
| Tritanopia (no blue cones) | #00A5AD | 0.096 |
| Achromatopsia (no color) | #8E8E8E | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3394DA
#3394DA
oklch(64.3% 0.137 244.5)
- #C57919
#C57919
oklch(64.4% 0.137 65)
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 #3394DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.027
- Chefchaouen Blue #4895EF ΔE 0.036
- Water Blue #0E87CC ΔE 0.045
- Cornflower Blue #6495ED ΔE 0.052
- Faded Blue #658CBB ΔE 0.058
- Soft Blue #6488EA ΔE 0.058
- Dodger Blue #1E90FF ΔE 0.059
- Cool Blue #4984B8 ΔE 0.060
Use #3394DA 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.