#0B3269
Closest named color: Marine Blue (#01386A). oklch(32.6% 0.106 258.2), rgb(11, 50, 105).
Aa
White text reads best on this color (12.54:1).
About this color
#0B3269 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.106 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.018 away. White text reads best on it, at 12.54:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.67:1 |
| White text | 12.54:1 |
Values
| HEX | #0B3269 |
| RGB | rgb(11, 50, 105) |
| HSL | hsl(215, 81%, 23%) |
| OKLCH | oklch(32.6% 0.106 258.2) |
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 #0B3269 | 12.54:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #0B3269 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #0B3269 text on white | 12.54:1 | AAA | Lc 98.0 | Preferred for body text |
| #0B3269 text on black | 1.67:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DBF7
oklch(88.6% 0.044 258)
-
Step 300
300
#A1C3F4
oklch(81% 0.079 257.5)
-
Step 400
400
#6EA1EF
oklch(70.6% 0.127 258.6)
-
Step 500
500
#4688E9
oklch(63.1% 0.161 258.1)
-
Step 600
600
#266FD8
oklch(55.6% 0.176 258.4)
-
Step 700
700
#185CBB
oklch(49% 0.164 258.3)
-
Step 800
800
#174C97
oklch(42.7% 0.135 258.2)
-
Step 900
900 (this color)
#0B3269
oklch(32.6% 0.106 258.2)
-
Step 950
950
#102646
oklch(27% 0.066 257.9)
#0B3269 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) | #10386B | 0.019 |
| Deuteranopia (no green cones) | #003068 | 0.010 |
| Tritanopia (no blue cones) | #003F48 | 0.080 |
| Achromatopsia (no color) | #343434 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B3269
#0B3269
oklch(32.6% 0.106 258.2)
- #472F00
#472F00
oklch(32.6% 0.068 78)
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 #0B3269, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.018
- Marine #042E60 ΔE 0.021
- Prussian Blue #1D3557 ΔE 0.038
- Twilight Blue #0A437A ΔE 0.056
- Midnight Blue #191970 ΔE 0.062
- Midnight Green #073B4C ΔE 0.064
- Dark Blue Grey #1F3B4D ΔE 0.065
- Space Cadet #2B2D42 ΔE 0.075
Use #0B3269 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.