#0B2345
Closest named color: Oxford Blue (#1B263B). oklch(25.9% 0.071 257.7), rgb(11, 35, 69).
Aa
White text reads best on this color (15.66:1).
About this color
#0B2345 is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.071 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.030 away. White text reads best on it, at 15.66:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.66:1 |
Values
| HEX | #0B2345 |
| RGB | rgb(11, 35, 69) |
| HSL | hsl(215, 72%, 16%) |
| OKLCH | oklch(25.9% 0.071 257.7) |
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 #0B2345 | 15.66:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #0B2345 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #0B2345 text on white | 15.66:1 | AAA | Lc 102.4 | Preferred for body text |
| #0B2345 text on black | 1.34:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF8
oklch(88.5% 0.046 256.5)
-
Step 300
300
#9FC3F7
oklch(81% 0.084 257.5)
-
Step 400
400
#6AA2F3
oklch(70.8% 0.133 257.6)
-
Step 500
500
#3F88EE
oklch(63.2% 0.17 257.4)
-
Step 600
600
#1A6FDD
oklch(55.7% 0.185 257.5)
-
Step 700
700
#0A5CC0
oklch(49.2% 0.173 257.6)
-
Step 800
800
#0E4B9B
oklch(42.6% 0.144 257.8)
-
Step 900
900
#15407B
oklch(37.7% 0.111 257.5)
-
Step 950
950 (this color)
#0B2345
oklch(25.9% 0.071 257.7)
#0B2345 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) | #122646 | 0.013 |
| Deuteranopia (no green cones) | #072144 | 0.008 |
| Tritanopia (no blue cones) | #002B30 | 0.055 |
| Achromatopsia (no color) | #232323 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B2345
#0B2345
oklch(25.9% 0.071 257.7)
- #322000
#322000
oklch(26% 0.054 78.1)
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 #0B2345, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.030
- Dark #1B2431 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.054
- Marine #042E60 ΔE 0.056
- Navy Blue #001146 ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.060
- Jet #212529 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.069
Use #0B2345 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.