#0B3E67
Closest named color: Marine Blue (#01386A). oklch(35.5% 0.088 248.3), rgb(11, 62, 103).
Aa
White text reads best on this color (11.05:1).
About this color
#0B3E67 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.088 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.022 away. White text reads best on it, at 11.05:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #0B3E67 |
| RGB | rgb(11, 62, 103) |
| HSL | hsl(207, 81%, 22%) |
| OKLCH | oklch(35.5% 0.088 248.3) |
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 #0B3E67 | 11.05:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #0B3E67 | 1.89:1 | Fails | Lc 8.7 | Not readable |
| #0B3E67 text on white | 11.05:1 | AAA | Lc 95.2 | Preferred for body text |
| #0B3E67 text on black | 1.89:1 | Fails | Lc -7.5 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF1
oklch(88.5% 0.037 248.2)
-
Step 300
300
#A0C5EA
oklch(80.9% 0.066 248.6)
-
Step 400
400
#6AA6DF
oklch(70.7% 0.105 248.3)
-
Step 500
500
#3D8ED6
oklch(63% 0.134 248.5)
-
Step 600
600
#0E77C4
oklch(55.6% 0.146 248.4)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#065289
oklch(42.8% 0.112 248.1)
-
Step 900
900 (this color)
#0B3E67
oklch(35.5% 0.088 248.3)
-
Step 950
950
#0D2840
oklch(27% 0.056 248.3)
#0B3E67 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) | #2A4069 | 0.030 |
| Deuteranopia (no green cones) | #1C3866 | 0.020 |
| Tritanopia (no blue cones) | #00484D | 0.064 |
| Achromatopsia (no color) | #3C3C3C | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B3E67
#0B3E67
oklch(35.5% 0.088 248.3)
- #563300
#563300
oklch(35.6% 0.078 68.5)
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 #0B3E67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.022
- Twilight Blue #0A437A ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.046
- Midnight Green #073B4C ΔE 0.048
- Marine #042E60 ΔE 0.051
- Charcoal #264653 ΔE 0.054
Use #0B3E67 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.