#0D192B
Closest named color: Rich Black (#0D1B2A). oklch(21.3% 0.04 258.3), rgb(13, 25, 43).
Aa
White text reads best on this color (17.63:1).
About this color
#0D192B is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.040 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.008 away. White text reads best on it, at 17.63:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.63:1 |
Values
| HEX | #0D192B |
| RGB | rgb(13, 25, 43) |
| HSL | hsl(216, 54%, 11%) |
| OKLCH | oklch(21.3% 0.04 258.3) |
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 #0D192B | 17.63:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #0D192B | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #0D192B text on white | 17.63:1 | AAA | Lc 104.4 | Preferred for body text |
| #0D192B text on black | 1.19:1 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AEC2E0
oklch(80.9% 0.048 258.4)
-
Step 400
400
#84A2D0
oklch(70.7% 0.076 258.8)
-
Step 500
500
#658BC4
oklch(63.2% 0.096 258.3)
-
Step 600
600
#4C74B0
oklch(55.7% 0.104 258.3)
-
Step 700
700
#3D6197
oklch(49.1% 0.097 258.3)
-
Step 800
800
#324F7B
oklch(42.6% 0.081 258.5)
-
Step 900
900
#2C4263
oklch(37.7% 0.063 258.3)
-
Step 950
950 (this color)
#0D192B
oklch(21.3% 0.04 258.3)
#0D192B 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) | #121A2C | 0.009 |
| Deuteranopia (no green cones) | #0E172B | 0.007 |
| Tritanopia (no blue cones) | #001D20 | 0.035 |
| Achromatopsia (no color) | #191919 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D192B
#0D192B
oklch(21.3% 0.04 258.3)
- #231602
#231602
oklch(21.2% 0.04 77.4)
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 #0D192B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.008
- Dark #1B2431 ΔE 0.047
- Rich Navy #001219 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.057
- Jet #212529 ΔE 0.058
- Navy Blue #001146 ΔE 0.063
- Almost Black #070D0D ΔE 0.070
- Dark Navy #000435 ΔE 0.077
Use #0D192B 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.