#0D1D4B
Closest named color: Navy Blue (#001146). oklch(25% 0.088 265.7), rgb(13, 29, 75).
Aa
White text reads best on this color (16.22:1).
About this color
#0D1D4B is a very dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.088 and its hue 266°. 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 16.22:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.29:1 |
| White text | 16.22:1 |
Values
| HEX | #0D1D4B |
| RGB | rgb(13, 29, 75) |
| HSL | hsl(225, 70%, 17%) |
| OKLCH | oklch(25% 0.088 265.7) |
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 #0D1D4B | 16.22:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #0D1D4B | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #0D1D4B text on white | 16.22:1 | AAA | Lc 102.9 | Preferred for body text |
| #0D1D4B 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#739CFF
oklch(70.7% 0.152 265.7)
-
Step 500
500
#507FFF
oklch(63.1% 0.197 265.8)
-
Step 600
600
#3260F8
oklch(55.5% 0.232 265.9)
-
Step 700
700
#264ED8
oklch(49.1% 0.215 265.8)
-
Step 800
800
#2041AF
oklch(42.7% 0.179 265.9)
-
Step 900
900
#1E398A
oklch(37.7% 0.139 265.9)
-
Step 950
950 (this color)
#0D1D4B
oklch(25% 0.088 265.7)
#0D1D4B 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) | #00234D | 0.019 |
| Deuteranopia (no green cones) | #001E4A | 0.013 |
| Tritanopia (no blue cones) | #002830 | 0.070 |
| Achromatopsia (no color) | #202020 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D1D4B
#0D1D4B
oklch(25% 0.088 265.7)
- #2C1F00
#2C1F00
oklch(24.8% 0.051 85.9)
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 #0D1D4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.042
- Oxford Blue #1B263B ΔE 0.050
- Dark Indigo #1F0954 ΔE 0.051
- Marine #042E60 ΔE 0.060
- Dark #1B2431 ΔE 0.061
- Rich Black #0D1B2A ΔE 0.063
- Darkblue #030764 ΔE 0.064
- Night Blue #040348 ΔE 0.067
Use #0D1D4B 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.