#0F286F
Closest named color: Marine (#042E60). oklch(31% 0.127 264.8), rgb(15, 40, 111).
Aa
White text reads best on this color (13.51:1).
About this color
#0F286F is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.127 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.032 away. White text reads best on it, at 13.51:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.55:1 |
| White text | 13.51:1 |
Values
| HEX | #0F286F |
| RGB | rgb(15, 40, 111) |
| HSL | hsl(224, 76%, 25%) |
| OKLCH | oklch(31% 0.127 264.8) |
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 #0F286F | 13.51:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #0F286F | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #0F286F text on white | 13.51:1 | AAA | Lc 99.5 | Preferred for body text |
| #0F286F text on black | 1.55:1 | 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
#719CFF
oklch(70.6% 0.153 265)
-
Step 500
500
#4D80FF
oklch(63.2% 0.197 264.8)
-
Step 600
600
#295EFF
oklch(55.5% 0.245 264.9)
-
Step 700
700
#0E37FF
oklch(49.1% 0.287 264.8)
-
Step 800
800
#0928D8
oklch(42.7% 0.257 264.9)
-
Step 900
900
#0A2BA9
oklch(37.6% 0.201 264.8)
-
Step 950
950 (this color)
#0F286F
oklch(31% 0.127 264.8)
#0F286F 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) | #003371 | 0.029 |
| Deuteranopia (no green cones) | #002A6E | 0.011 |
| Tritanopia (no blue cones) | #003A47 | 0.097 |
| Achromatopsia (no color) | #2E2E2E | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F286F
#0F286F
oklch(31% 0.127 264.8)
- #3F2D00
#3F2D00
oklch(31% 0.064 84.6)
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 #0F286F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.032
- Midnight Blue #191970 ΔE 0.033
- Marine Blue #01386A ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.063
- Royal #0C1793 ΔE 0.067
- Dark Royal Blue #02066F ΔE 0.069
- Deep Blue #040273 ΔE 0.071
- Navy #000080 ΔE 0.072
Use #0F286F 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.