#0F356A
Closest named color: Marine Blue (#01386A). oklch(33.5% 0.102 257.8), rgb(15, 53, 106).
Aa
White text reads best on this color (12.08:1).
About this color
#0F356A is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.102 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.011 away. White text reads best on it, at 12.08:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.73:1 |
| White text | 12.08:1 |
Values
| HEX | #0F356A |
| RGB | rgb(15, 53, 106) |
| HSL | hsl(215, 75%, 24%) |
| OKLCH | oklch(33.5% 0.102 257.8) |
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 #0F356A | 12.08:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #0F356A | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #0F356A text on white | 12.08:1 | AAA | Lc 97.2 | Preferred for body text |
| #0F356A text on black | 1.73:1 | 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 900.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF6
oklch(88.6% 0.043 257.1)
-
Step 300
300
#A2C3F2
oklch(81% 0.076 257.2)
-
Step 400
400
#6FA2EC
oklch(70.7% 0.122 257.6)
-
Step 500
500
#4888E6
oklch(63% 0.157 258.1)
-
Step 600
600
#2870D4
oklch(55.6% 0.17 257.8)
-
Step 700
700
#1A5DB8
oklch(49.1% 0.158 257.8)
-
Step 800
800
#194D95
oklch(42.8% 0.13 257.7)
-
Step 900
900 (this color)
#0F356A
oklch(33.5% 0.102 257.8)
-
Step 950
950
#112645
oklch(27% 0.064 258.1)
#0F356A 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) | #173A6C | 0.018 |
| Deuteranopia (no green cones) | #003269 | 0.014 |
| Tritanopia (no blue cones) | #00424A | 0.079 |
| Achromatopsia (no color) | #363636 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F356A
#0F356A
oklch(33.5% 0.102 257.8)
- #4A3100
#4A3100
oklch(33.4% 0.07 77.7)
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 #0F356A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.011
- Marine #042E60 ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.035
- Twilight Blue #0A437A ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.060
- Midnight Green #073B4C ΔE 0.061
- Midnight Blue #191970 ΔE 0.070
- Dark Grey Blue #29465B ΔE 0.072
Use #0F356A 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.