#0B1D4E
Closest named color: Navy Blue (#001146). oklch(25.2% 0.094 265), rgb(11, 29, 78).
Aa
White text reads best on this color (16.15:1).
About this color
#0B1D4E is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.094 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.042 away. White text reads best on it, at 16.15:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.29:1 |
| White text | 16.15:1 |
Values
| HEX | #0B1D4E |
| RGB | rgb(11, 29, 78) |
| HSL | hsl(224, 75%, 17%) |
| OKLCH | oklch(25.2% 0.094 265) |
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 #0B1D4E | 16.15:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #0B1D4E | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #0B1D4E text on white | 16.15:1 | AAA | Lc 102.8 | Preferred for body text |
| #0B1D4E text on black | 1.29:1 | 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 950.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7D9FF
oklch(88.4% 0.056 265.2)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#719CFF
oklch(70.6% 0.153 265)
-
Step 500
500
#4D80FF
oklch(63.2% 0.197 264.8)
-
Step 600
600
#2A5EFF
oklch(55.6% 0.245 265.1)
-
Step 700
700
#1E4CDF
oklch(49.2% 0.228 264.9)
-
Step 800
800
#193FB4
oklch(42.6% 0.19 265)
-
Step 900
900
#19388E
oklch(37.6% 0.147 264.9)
-
Step 950
950 (this color)
#0B1D4E
oklch(25.2% 0.094 265)
#0B1D4E 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) | #002450 | 0.021 |
| Deuteranopia (no green cones) | #001E4D | 0.011 |
| Tritanopia (no blue cones) | #002932 | 0.072 |
| Achromatopsia (no color) | #212121 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B1D4E
#0B1D4E
oklch(25.2% 0.094 265)
- #2D2000
#2D2000
oklch(25.2% 0.052 86.4)
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 #0B1D4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.042
- Dark Indigo #1F0954 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.054
- Marine #042E60 ΔE 0.058
- Darkblue #030764 ΔE 0.059
- Midnight Blue #191970 ΔE 0.064
- Dark #1B2431 ΔE 0.066
- Night Blue #040348 ΔE 0.067
Use #0B1D4E 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.