#0F1843
Closest named color: Navy Blue (#001146). oklch(23.1% 0.082 269.9), rgb(15, 24, 67).
Aa
White text reads best on this color (17.04:1).
About this color
#0F1843 is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.082 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.031 away. White text reads best on it, at 17.04:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.23:1 |
| White text | 17.04:1 |
Values
| HEX | #0F1843 |
| RGB | rgb(15, 24, 67) |
| HSL | hsl(230, 63%, 16%) |
| OKLCH | oklch(23.1% 0.082 269.9) |
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 #0F1843 | 17.04:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #0F1843 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #0F1843 text on white | 17.04:1 | AAA | Lc 103.7 | Preferred for body text |
| #0F1843 text on black | 1.23:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FD
oklch(93.5% 0.028 270.4)
-
Step 200
200
#CBD8FE
oklch(88.5% 0.054 270.4)
-
Step 300
300
#A8BEFF
oklch(80.9% 0.096 269.8)
-
Step 400
400
#7C99FF
oklch(70.6% 0.153 270.2)
-
Step 500
500
#5D7CFF
oklch(63.2% 0.197 269.9)
-
Step 600
600
#4660EF
oklch(55.6% 0.216 269.9)
-
Step 700
700
#384ED0
oklch(49.1% 0.201 269.8)
-
Step 800
800
#2E41A8
oklch(42.7% 0.166 269.8)
-
Step 900
900
#283985
oklch(37.8% 0.129 269.7)
-
Step 950
950 (this color)
#0F1843
oklch(23.1% 0.082 269.9)
#0F1843 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) | #001E44 | 0.022 |
| Deuteranopia (no green cones) | #001A42 | 0.018 |
| Tritanopia (no blue cones) | #00232A | 0.068 |
| Achromatopsia (no color) | #1C1C1C | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1843
#0F1843
oklch(23.1% 0.082 269.9)
- #261C00
#261C00
oklch(23.2% 0.047 90)
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 #0F1843, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.031
- Dark Indigo #1F0954 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.051
- Oxford Blue #1B263B ΔE 0.055
- Night Blue #040348 ΔE 0.056
- Dark #1B2431 ΔE 0.061
- Darkblue #030764 ΔE 0.070
- Dark Navy #000435 ΔE 0.073
Use #0F1843 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.