#0A1642
Closest named color: Navy Blue (#001146). oklch(22.3% 0.085 267.3), rgb(10, 22, 66).
Aa
White text reads best on this color (17.40:1).
About this color
#0A1642 is a very dark, moderately saturated blue. In OKLCH its lightness is 22%, its chroma 0.085 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.023 away. White text reads best on it, at 17.40:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.20:1 |
| White text | 17.40:1 |
Values
| HEX | #0A1642 |
| RGB | rgb(10, 22, 66) |
| HSL | hsl(227, 74%, 15%) |
| OKLCH | oklch(22.3% 0.085 267.3) |
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 #0A1642 | 17.40:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #0A1642 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #0A1642 text on white | 17.40:1 | AAA | Lc 104.0 | Preferred for body text |
| #0A1642 text on black | 1.20:1 | 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
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#769BFF
oklch(70.7% 0.152 267.2)
-
Step 500
500
#557EFF
oklch(63.2% 0.197 267.3)
-
Step 600
600
#3B61F3
oklch(55.6% 0.223 267.3)
-
Step 700
700
#2E4ED4
oklch(49% 0.208 267.3)
-
Step 800
800
#2641AB
oklch(42.6% 0.172 267.3)
-
Step 900
900
#223988
oklch(37.7% 0.135 267.2)
-
Step 950
950 (this color)
#0A1642
oklch(22.3% 0.085 267.3)
#0A1642 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) | #001D43 | 0.022 |
| Deuteranopia (no green cones) | #001741 | 0.013 |
| Tritanopia (no blue cones) | #002129 | 0.067 |
| Achromatopsia (no color) | #1A1A1A | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A1642
#0A1642
oklch(22.3% 0.085 267.3)
- #241A00
#241A00
oklch(22.4% 0.046 89.1)
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 #0A1642, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.023
- Night Blue #040348 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.052
- Dark Indigo #1F0954 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.063
- Dark Navy #000435 ΔE 0.064
- Darkblue #030764 ΔE 0.067
- Dark #1B2431 ΔE 0.068
Use #0A1642 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.