#0B193C
Closest named color: Navy Blue (#001146). oklch(22.5% 0.07 264.9), rgb(11, 25, 60).
Aa
White text reads best on this color (17.23:1).
About this color
#0B193C is a very dark, moderately saturated blue. In OKLCH its lightness is 22%, its chroma 0.070 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.035 away. White text reads best on it, at 17.23:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.21:1 |
| White text | 17.23:1 |
Values
| HEX | #0B193C |
| RGB | rgb(11, 25, 60) |
| HSL | hsl(223, 69%, 14%) |
| OKLCH | oklch(22.5% 0.07 264.9) |
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 #0B193C | 17.23:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #0B193C | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #0B193C text on white | 17.23:1 | AAA | Lc 103.9 | Preferred for body text |
| #0B193C text on black | 1.21:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9F9
oklch(88.4% 0.047 265.5)
-
Step 300
300
#A6C0F7
oklch(80.8% 0.083 264.9)
-
Step 400
400
#779EF3
oklch(70.7% 0.132 264.6)
-
Step 500
500
#5683EF
oklch(63.2% 0.169 264.9)
-
Step 600
600
#3C69DE
oklch(55.5% 0.186 265)
-
Step 700
700
#2F57C0
oklch(49.1% 0.171 264.9)
-
Step 800
800
#27489C
oklch(42.8% 0.143 264.8)
-
Step 900
900
#243D7C
oklch(37.7% 0.111 265.2)
-
Step 950
950 (this color)
#0B193C
oklch(22.5% 0.07 264.9)
#0B193C 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) | #051D3D | 0.013 |
| Deuteranopia (no green cones) | #00193B | 0.014 |
| Tritanopia (no blue cones) | #002127 | 0.056 |
| Achromatopsia (no color) | #1B1B1B | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B193C
#0B193C
oklch(22.5% 0.07 264.9)
- #261A00
#261A00
oklch(22.7% 0.046 85)
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 #0B193C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.035
- Rich Black #0D1B2A ΔE 0.037
- Oxford Blue #1B263B ΔE 0.052
- Dark #1B2431 ΔE 0.054
- Night Blue #040348 ΔE 0.060
- Dark Indigo #1F0954 ΔE 0.063
- Dark Navy #000435 ΔE 0.070
- Jet #212529 ΔE 0.072
Use #0B193C 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.