#0B2745
Closest named color: Oxford Blue (#1B263B). oklch(26.9% 0.065 252.8), rgb(11, 39, 69).
Aa
White text reads best on this color (15.10:1).
About this color
#0B2745 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.065 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.025 away. White text reads best on it, at 15.10:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.39:1 |
| White text | 15.10:1 |
Values
| HEX | #0B2745 |
| RGB | rgb(11, 39, 69) |
| HSL | hsl(211, 72%, 16%) |
| OKLCH | oklch(26.9% 0.065 252.8) |
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 #0B2745 | 15.10:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #0B2745 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #0B2745 text on white | 15.10:1 | AAA | Lc 101.8 | Preferred for body text |
| #0B2745 text on black | 1.39:1 | 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
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DCF5
oklch(88.6% 0.042 251.7)
-
Step 300
300
#9DC4F2
oklch(80.8% 0.078 252.9)
-
Step 400
400
#66A4EB
oklch(70.7% 0.123 252.9)
-
Step 500
500
#368BE5
oklch(63% 0.158 252.8)
-
Step 600
600
#0073D3
oklch(55.6% 0.171 252.9)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900
#0E4276
oklch(37.6% 0.103 252.8)
-
Step 950
950 (this color)
#0B2745
oklch(26.9% 0.065 252.8)
#0B2745 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) | #192946 | 0.018 |
| Deuteranopia (no green cones) | #102444 | 0.010 |
| Tritanopia (no blue cones) | #002E32 | 0.050 |
| Achromatopsia (no color) | #262626 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B2745
#0B2745
oklch(26.9% 0.065 252.8)
- #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 #0B2745, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.025
- Dark #1B2431 ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.050
- Marine #042E60 ΔE 0.051
- Jet #212529 ΔE 0.056
- Gunmetal #293241 ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.060
Use #0B2745 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.