#0A1A4D
Closest named color: Navy Blue (#001146). oklch(24.3% 0.097 265.9), rgb(10, 26, 77).
Aa
White text reads best on this color (16.56:1).
About this color
#0A1A4D is a very dark, moderately saturated blue. In OKLCH its lightness is 24%, its chroma 0.097 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.034 away. White text reads best on it, at 16.56:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.26:1 |
| White text | 16.56:1 |
Values
| HEX | #0A1A4D |
| RGB | rgb(10, 26, 77) |
| HSL | hsl(226, 77%, 17%) |
| OKLCH | oklch(24.3% 0.097 265.9) |
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 #0A1A4D | 16.56:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #0A1A4D | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #0A1A4D text on white | 16.56:1 | AAA | Lc 103.2 | Preferred for body text |
| #0A1A4D text on black | 1.26:1 | 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
#A4C0FF
oklch(81% 0.095 265.8)
-
Step 400
400
#749CFF
oklch(70.8% 0.152 266)
-
Step 500
500
#507FFF
oklch(63.1% 0.197 265.8)
-
Step 600
600
#2F5DFF
oklch(55.5% 0.245 265.9)
-
Step 700
700
#2248E3
oklch(49% 0.236 266)
-
Step 800
800
#1C3DB8
oklch(42.7% 0.196 265.9)
-
Step 900
900
#1B3791
oklch(37.8% 0.152 265.9)
-
Step 950
950 (this color)
#0A1A4D
oklch(24.3% 0.097 265.9)
#0A1A4D 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) | #00224F | 0.023 |
| Deuteranopia (no green cones) | #001C4C | 0.011 |
| Tritanopia (no blue cones) | #002730 | 0.075 |
| Achromatopsia (no color) | #1F1F1F | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A1A4D
#0A1A4D
oklch(24.3% 0.097 265.9)
- #2A1E00
#2A1E00
oklch(24.3% 0.05 87.2)
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 #0A1A4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.034
- Dark Indigo #1F0954 ΔE 0.046
- Darkblue #030764 ΔE 0.054
- Night Blue #040348 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.060
- Marine #042E60 ΔE 0.066
- Midnight Blue #191970 ΔE 0.067
- Rich Black #0D1B2A ΔE 0.068
Use #0A1A4D 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.