#0B2744
Closest named color: Oxford Blue (#1B263B). oklch(26.9% 0.064 252.1), rgb(11, 39, 68).
Aa
White text reads best on this color (15.13:1).
About this color
#0B2744 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.064 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.023 away. White text reads best on it, at 15.13:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.13:1 |
Values
| HEX | #0B2744 |
| RGB | rgb(11, 39, 68) |
| HSL | hsl(211, 72%, 15%) |
| OKLCH | oklch(26.9% 0.064 252.1) |
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 #0B2744 | 15.13:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #0B2744 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #0B2744 text on white | 15.13:1 | AAA | Lc 101.8 | Preferred for body text |
| #0B2744 text on black | 1.38:1 | 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 950.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DCF5
oklch(88.6% 0.042 251.7)
-
Step 300
300
#9EC4F1
oklch(80.9% 0.076 253)
-
Step 400
400
#66A4EA
oklch(70.6% 0.122 252.5)
-
Step 500
500
#378CE3
oklch(63.1% 0.154 252.1)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#004F92
oklch(42.6% 0.129 252.3)
-
Step 900
900
#0F4375
oklch(37.8% 0.1 251.8)
-
Step 950
950 (this color)
#0B2744
oklch(26.9% 0.064 252.1)
#0B2744 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) | #192945 | 0.018 |
| Deuteranopia (no green cones) | #112443 | 0.010 |
| Tritanopia (no blue cones) | #002E32 | 0.048 |
| Achromatopsia (no color) | #262626 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B2744
#0B2744
oklch(26.9% 0.064 252.1)
- #372100
#372100
oklch(27% 0.057 72.9)
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 #0B2744, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.023
- Dark #1B2431 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.050
- Marine #042E60 ΔE 0.052
- Jet #212529 ΔE 0.055
- Gunmetal #293241 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.059
Use #0B2744 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.