#0F2259
Closest named color: Marine (#042E60). oklch(27.5% 0.102 265.5), rgb(15, 34, 89).
Aa
White text reads best on this color (15.07:1).
About this color
#0F2259 is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.102 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.036 away. White text reads best on it, at 15.07:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.39:1 |
| White text | 15.07:1 |
Values
| HEX | #0F2259 |
| RGB | rgb(15, 34, 89) |
| HSL | hsl(225, 71%, 20%) |
| OKLCH | oklch(27.5% 0.102 265.5) |
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 #0F2259 | 15.07:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #0F2259 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #0F2259 text on white | 15.07:1 | AAA | Lc 101.6 | Preferred for body text |
| #0F2259 text on black | 1.39:1 | 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
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#739CFF
oklch(70.7% 0.152 265.7)
-
Step 500
500
#4F7FFF
oklch(63.1% 0.197 265.6)
-
Step 600
600
#2D5EFF
oklch(55.6% 0.244 265.5)
-
Step 700
700
#1C45EB
oklch(49.1% 0.25 265.5)
-
Step 800
800
#183BBE
oklch(42.8% 0.207 265.5)
-
Step 900
900
#173595
oklch(37.6% 0.161 265.5)
-
Step 950
950 (this color)
#0F2259
oklch(27.5% 0.102 265.5)
#0F2259 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) | #002A5B | 0.024 |
| Deuteranopia (no green cones) | #002358 | 0.013 |
| Tritanopia (no blue cones) | #003039 | 0.082 |
| Achromatopsia (no color) | #262626 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F2259
#0F2259
oklch(27.5% 0.102 265.5)
- #342500
#342500
oklch(27.5% 0.056 85.5)
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 #0F2259, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.036
- Midnight Blue #191970 ΔE 0.046
- Dark Indigo #1F0954 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.060
- Darkblue #030764 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.064
- Navy Blue #001146 ΔE 0.065
- Dark Royal Blue #02066F ΔE 0.067
Use #0F2259 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.