#003960
Closest named color: Marine Blue (#01386A). oklch(33.4% 0.087 246.3), rgb(0, 57, 96).
Aa
White text reads best on this color (11.97:1).
About this color
#003960 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.087 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.019 away. White text reads best on it, at 11.97:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.75:1 |
| White text | 11.97:1 |
Values
| HEX | #003960 |
| RGB | rgb(0, 57, 96) |
| HSL | hsl(204, 100%, 19%) |
| OKLCH | oklch(33.4% 0.087 246.3) |
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 #003960 | 11.97:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #003960 | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #003960 text on white | 11.97:1 | AAA | Lc 96.9 | Preferred for body text |
| #003960 text on black | 1.75:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300
#9FC5E9
oklch(80.8% 0.065 247.2)
-
Step 400
400
#68A7DE
oklch(70.8% 0.104 246.3)
-
Step 500
500
#398FD5
oklch(63.1% 0.134 246.8)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005287
oklch(42.6% 0.111 246.5)
-
Step 900
900 (this color)
#003960
oklch(33.4% 0.087 246.3)
-
Step 950
950
#0C2840
oklch(26.9% 0.056 247.6)
#003960 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) | #263B62 | 0.033 |
| Deuteranopia (no green cones) | #17335F | 0.021 |
| Tritanopia (no blue cones) | #004347 | 0.063 |
| Achromatopsia (no color) | #373737 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #003960
#003960
oklch(33.4% 0.087 246.3)
- #502D00
#502D00
oklch(33.4% 0.075 65.5)
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 #003960, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.019
- Prussian Blue #1D3557 ΔE 0.025
- Marine #042E60 ΔE 0.034
- Midnight Green #073B4C ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.041
- Twilight Blue #0A437A ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.059
- Gunmetal #293241 ΔE 0.061
Use #003960 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.