#0F4E71
Closest named color: Deep Sea Blue (#015482). oklch(40.4% 0.084 239.3), rgb(15, 78, 113).
Aa
White text reads best on this color (8.94:1).
About this color
#0F4E71 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.084 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.030 away. White text reads best on it, at 8.94:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #0F4E71 |
| RGB | rgb(15, 78, 113) |
| HSL | hsl(201, 77%, 25%) |
| OKLCH | oklch(40.4% 0.084 239.3) |
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 #0F4E71 | 8.94:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #0F4E71 | 2.34:1 | Fails | Lc 13.8 | Not readable |
| #0F4E71 text on white | 8.94:1 | AAA | Lc 90.1 | Preferred for body text |
| #0F4E71 text on black | 2.34:1 | Fails | Lc -12.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCEA
oklch(88.5% 0.027 241.2)
-
Step 300
300
#A4C6DD
oklch(80.9% 0.049 237.8)
-
Step 400
400
#72A8CD
oklch(70.8% 0.079 239.3)
-
Step 500
500
#4A91C0
oklch(63.1% 0.101 240)
-
Step 600
600
#277BAC
oklch(55.6% 0.109 239.2)
-
Step 700
700
#186794
oklch(49% 0.102 239.8)
-
Step 800
800 (this color)
#0F4E71
oklch(40.4% 0.084 239.3)
-
Step 900
900
#1B4661
oklch(37.7% 0.066 239.5)
-
Step 950
950
#112939
oklch(27% 0.042 240.1)
#0F4E71 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) | #3D4E73 | 0.044 |
| Deuteranopia (no green cones) | #304670 | 0.034 |
| Tritanopia (no blue cones) | #00575A | 0.056 |
| Achromatopsia (no color) | #494949 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F4E71
#0F4E71
oklch(40.4% 0.084 239.3)
- #693C11
#693C11
oklch(40.3% 0.084 59.6)
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 #0F4E71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.030
- Light Navy #155084 ΔE 0.032
- Twilight Blue #0A437A ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.041
- Charcoal #264653 ΔE 0.051
- Deep Teal #00555A ΔE 0.052
- Dusk Blue #26538D ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.058
Use #0F4E71 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.