#3384D0
Closest named color: Water Blue (#0E87CC). oklch(60.1% 0.14 250.2), rgb(51, 132, 208).
Aa
Black text reads best on this color (5.35:1).
About this color
#3384D0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.140 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.018 away. Black text reads best on it, at 5.35:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.35:1 |
| White text | 3.92:1 |
Values
| HEX | #3384D0 |
| RGB | rgb(51, 132, 208) |
| HSL | hsl(209, 63%, 51%) |
| OKLCH | oklch(60.1% 0.14 250.2) |
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 #3384D0 | 3.92:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #3384D0 | 5.35:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #3384D0 text on white | 3.92:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #3384D0 text on black | 5.35:1 | AA | Lc -35.4 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF2
oklch(88.6% 0.038 249.5)
-
Step 300
300
#A0C5EC
oklch(81% 0.068 250)
-
Step 400
400
#6AA5E2
oklch(70.6% 0.109 250.4)
-
Step 500
500 (this color)
#3384D0
oklch(60.1% 0.14 250.2)
-
Step 600
600
#1176C8
oklch(55.7% 0.152 250.2)
-
Step 700
700
#0063AC
oklch(49.2% 0.139 250)
-
Step 800
800
#08518C
oklch(42.8% 0.117 250.1)
-
Step 900
900
#134370
oklch(37.6% 0.092 250.7)
-
Step 950
950
#0D2841
oklch(27% 0.057 249.3)
#3384D0 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) | #6188D3 | 0.045 |
| Deuteranopia (no green cones) | #497ACF | 0.029 |
| Tritanopia (no blue cones) | #0096A0 | 0.103 |
| Achromatopsia (no color) | #808080 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3384D0
#3384D0
oklch(60.1% 0.14 250.2)
- #B17000
#B17000
oklch(60.1% 0.13 69.9)
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 #3384D0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.018
- Windows Blue #3778BF ΔE 0.038
- Cool Blue #4984B8 ΔE 0.039
- Dark Sky Blue #448EE4 ΔE 0.042
- Steel Blue #4682B4 ΔE 0.043
- Blue NCS #118AB2 ΔE 0.056
- Off Blue #5684AE ΔE 0.058
- Nice Blue #107AB0 ΔE 0.059
Use #3384D0 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.