#0B2343
Closest named color: Oxford Blue (#1B263B). oklch(25.7% 0.067 256.7), rgb(11, 35, 67).
Aa
White text reads best on this color (15.72:1).
About this color
#0B2343 is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.067 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.028 away. White text reads best on it, at 15.72:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.72:1 |
Values
| HEX | #0B2343 |
| RGB | rgb(11, 35, 67) |
| HSL | hsl(214, 72%, 15%) |
| OKLCH | oklch(25.7% 0.067 256.7) |
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 #0B2343 | 15.72:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #0B2343 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #0B2343 text on white | 15.72:1 | AAA | Lc 102.5 | Preferred for body text |
| #0B2343 text on black | 1.33:1 | 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
#C7DBF7
oklch(88.5% 0.044 256.8)
-
Step 300
300
#A0C3F4
oklch(80.9% 0.079 256.8)
-
Step 400
400
#6BA2EF
oklch(70.7% 0.128 257)
-
Step 500
500
#4089EA
oklch(63.2% 0.163 256.6)
-
Step 600
600
#1C70D8
oklch(55.6% 0.177 256.8)
-
Step 700
700
#0C5DBB
oklch(49.1% 0.165 256.7)
-
Step 800
800
#104D97
oklch(42.8% 0.135 256.5)
-
Step 900
900
#164179
oklch(37.8% 0.106 256.6)
-
Step 950
950 (this color)
#0B2343
oklch(25.7% 0.067 256.7)
#0B2343 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) | #132644 | 0.014 |
| Deuteranopia (no green cones) | #0A2142 | 0.007 |
| Tritanopia (no blue cones) | #002B2F | 0.054 |
| Achromatopsia (no color) | #232323 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B2343
#0B2343
oklch(25.7% 0.067 256.7)
- #321F00
#321F00
oklch(25.7% 0.054 76)
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 #0B2343, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.028
- Dark #1B2431 ΔE 0.040
- Rich Black #0D1B2A ΔE 0.051
- Jet #212529 ΔE 0.058
- Navy Blue #001146 ΔE 0.059
- Marine #042E60 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.060
- Gunmetal #293241 ΔE 0.069
Use #0B2343 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.