#0A143D
Closest named color: Navy Blue (#001146). oklch(21.3% 0.08 268.3), rgb(10, 20, 61).
Aa
White text reads best on this color (17.79:1).
About this color
#0A143D is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.080 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.024 away. White text reads best on it, at 17.79:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.18:1 |
| White text | 17.79:1 |
Values
| HEX | #0A143D |
| RGB | rgb(10, 20, 61) |
| HSL | hsl(228, 72%, 14%) |
| OKLCH | oklch(21.3% 0.08 268.3) |
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 #0A143D | 17.79:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #0A143D | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #0A143D text on white | 17.79:1 | AAA | Lc 104.3 | Preferred for body text |
| #0A143D text on black | 1.18:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CAD9FD
oklch(88.6% 0.052 267.4)
-
Step 300
300
#A7BFFF
oklch(81% 0.095 268.4)
-
Step 400
400
#799BFE
oklch(70.8% 0.15 268.1)
-
Step 500
500
#597EFD
oklch(63.2% 0.193 268.2)
-
Step 600
600
#4162EC
oklch(55.5% 0.211 268.3)
-
Step 700
700
#3450CD
oklch(49% 0.195 268.4)
-
Step 800
800
#2B43A6
oklch(42.8% 0.162 268.3)
-
Step 900
900
#263A83
oklch(37.7% 0.125 268.3)
-
Step 950
950 (this color)
#0A143D
oklch(21.3% 0.08 268.3)
#0A143D 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) | #001A3E | 0.020 |
| Deuteranopia (no green cones) | #00163C | 0.014 |
| Tritanopia (no blue cones) | #001E26 | 0.062 |
| Achromatopsia (no color) | #181818 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A143D
#0A143D
oklch(21.3% 0.08 268.3)
- #211700
#211700
oklch(21.1% 0.043 87.4)
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 #0A143D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.024
- Night Blue #040348 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.047
- Dark Navy #000435 ΔE 0.056
- Dark Indigo #1F0954 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.068
- Very Dark Blue #000133 ΔE 0.068
- Dark #1B2431 ΔE 0.069
Use #0A143D 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.