#03346D
Closest named color: Marine Blue (#01386A). oklch(33.2% 0.111 256.2), rgb(3, 52, 109).
Aa
White text reads best on this color (12.23:1).
About this color
#03346D is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.111 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.014 away. White text reads best on it, at 12.23:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.71:1 |
| White text | 12.23:1 |
Values
| HEX | #03346D |
| RGB | rgb(3, 52, 109) |
| HSL | hsl(212, 95%, 22%) |
| OKLCH | oklch(33.2% 0.111 256.2) |
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 #03346D | 12.23:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #03346D | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #03346D text on white | 12.23:1 | AAA | Lc 97.3 | Preferred for body text |
| #03346D text on black | 1.71:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF8
oklch(88.5% 0.046 256.5)
-
Step 300
300
#9EC3F6
oklch(80.9% 0.083 256.5)
-
Step 400
400
#67A2F2
oklch(70.6% 0.133 256.4)
-
Step 500
500
#3A89ED
oklch(63.2% 0.169 255.9)
-
Step 600
600
#0F70DC
oklch(55.7% 0.184 256.2)
-
Step 700
700
#005DBD
oklch(49.1% 0.169 256.1)
-
Step 800
800
#074C9A
oklch(42.6% 0.142 256.4)
-
Step 900
900 (this color)
#03346D
oklch(33.2% 0.111 256.2)
-
Step 950
950
#0C2648
oklch(26.9% 0.071 256.4)
#03346D 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) | #0F3A6F | 0.021 |
| Deuteranopia (no green cones) | #00316C | 0.010 |
| Tritanopia (no blue cones) | #00424B | 0.083 |
| Achromatopsia (no color) | #353535 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03346D
#03346D
oklch(33.2% 0.111 256.2)
- #4A3000
#4A3000
oklch(33.2% 0.07 76.2)
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 #03346D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.014
- Marine #042E60 ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.049
- Midnight Blue #191970 ΔE 0.066
- Midnight Green #073B4C ΔE 0.067
- Dark Blue Grey #1F3B4D ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.080
Use #03346D 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.