#0F5181
Closest named color: Light Navy (#155084). oklch(42.2% 0.101 246.4), rgb(15, 81, 129).
Aa
White text reads best on this color (8.35:1).
About this color
#0F5181 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.101 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.007 away. White text reads best on it, at 8.35:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.51:1 |
| White text | 8.35:1 |
Values
| HEX | #0F5181 |
| RGB | rgb(15, 81, 129) |
| HSL | hsl(205, 79%, 28%) |
| OKLCH | oklch(42.2% 0.101 246.4) |
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 #0F5181 | 8.35:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #0F5181 | 2.51:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #0F5181 text on white | 8.35:1 | AAA | Lc 88.4 | Fine for body text |
| #0F5181 text on black | 2.51:1 | Fails | Lc -13.8 | 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 800.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300
#A2C5E5
oklch(80.9% 0.059 246.2)
-
Step 400
400
#6EA6D8
oklch(70.6% 0.094 246.5)
-
Step 500
500
#448FCE
oklch(63.1% 0.121 246.6)
-
Step 600
600
#1E78BB
oklch(55.6% 0.132 246.5)
-
Step 700
700
#0D65A1
oklch(49.1% 0.122 246.2)
-
Step 800
800 (this color)
#0F5181
oklch(42.2% 0.101 246.4)
-
Step 900
900
#184569
oklch(37.8% 0.079 246.3)
-
Step 950
950
#0F283D
oklch(26.8% 0.05 246.5)
#0F5181 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) | #3A5383 | 0.039 |
| Deuteranopia (no green cones) | #294980 | 0.027 |
| Tritanopia (no blue cones) | #005D63 | 0.071 |
| Achromatopsia (no color) | #4E4E4E | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F5181
#0F5181
oklch(42.2% 0.101 246.4)
- #6F4100
#6F4100
oklch(42.1% 0.094 66.1)
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 #0F5181, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.007
- Deep Sea Blue #015482 ΔE 0.009
- Dusk Blue #26538D ΔE 0.027
- Cobalt #1E488F ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.039
- Twilight Blue #0A437A ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.057
- YInMn Blue #415A77 ΔE 0.059
Use #0F5181 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.