#0A1C4C
Closest named color: Navy Blue (#001146). oklch(24.7% 0.092 264.8), rgb(10, 28, 76).
Aa
White text reads best on this color (16.36:1).
About this color
#0A1C4C is a very dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.092 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.038 away. White text reads best on it, at 16.36:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.28:1 |
| White text | 16.36:1 |
Values
| HEX | #0A1C4C |
| RGB | rgb(10, 28, 76) |
| HSL | hsl(224, 77%, 17%) |
| OKLCH | oklch(24.7% 0.092 264.8) |
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 #0A1C4C | 16.36:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #0A1C4C | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #0A1C4C text on white | 16.36:1 | AAA | Lc 103.0 | Preferred for body text |
| #0A1C4C text on black | 1.28:1 | 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
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#719DFF
oklch(70.8% 0.152 264.6)
-
Step 500
500
#4C80FF
oklch(63.2% 0.197 264.6)
-
Step 600
600
#295FFE
oklch(55.6% 0.243 264.8)
-
Step 700
700
#1D4DDE
oklch(49.2% 0.226 264.7)
-
Step 800
800
#1940B3
oklch(42.7% 0.187 264.8)
-
Step 900
900
#19398D
oklch(37.8% 0.145 264.5)
-
Step 950
950 (this color)
#0A1C4C
oklch(24.7% 0.092 264.8)
#0A1C4C 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) | #00234E | 0.021 |
| Deuteranopia (no green cones) | #001D4B | 0.010 |
| Tritanopia (no blue cones) | #002830 | 0.073 |
| Achromatopsia (no color) | #202020 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A1C4C
#0A1C4C
oklch(24.7% 0.092 264.8)
- #2C1E00
#2C1E00
oklch(24.6% 0.05 83.6)
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 #0A1C4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.038
- Dark Indigo #1F0954 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.055
- Darkblue #030764 ΔE 0.059
- Marine #042E60 ΔE 0.062
- Night Blue #040348 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.065
- Dark #1B2431 ΔE 0.066
Use #0A1C4C 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.