#16193D
Closest named color: Rich Black (#0D1B2A). oklch(23.4% 0.068 276.2), rgb(22, 25, 61).
Aa
White text reads best on this color (16.92:1).
About this color
#16193D is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.068 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.042 away. White text reads best on it, at 16.92:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.92:1 |
Values
| HEX | #16193D |
| RGB | rgb(22, 25, 61) |
| HSL | hsl(235, 47%, 16%) |
| OKLCH | oklch(23.4% 0.068 276.2) |
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 #16193D | 16.92:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #16193D | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #16193D text on white | 16.92:1 | AAA | Lc 103.7 | Preferred for body text |
| #16193D text on black | 1.24:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F7
oklch(88.5% 0.044 277.1)
-
Step 300
300
#B2BDF5
oklch(80.9% 0.08 275.8)
-
Step 400
400
#8B98F0
oklch(70.6% 0.129 276.2)
-
Step 500
500
#717CEB
oklch(63.1% 0.165 276.3)
-
Step 600
600
#5B62D9
oklch(55.5% 0.179 276.3)
-
Step 700
700
#4B51BC
oklch(49.1% 0.165 276)
-
Step 800
800
#3D4398
oklch(42.7% 0.137 275.9)
-
Step 900
900
#343979
oklch(37.6% 0.107 276.6)
-
Step 950
950 (this color)
#16193D
oklch(23.4% 0.068 276.2)
#16193D 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) | #061E3E | 0.023 |
| Deuteranopia (no green cones) | #021B3C | 0.026 |
| Tritanopia (no blue cones) | #032128 | 0.059 |
| Achromatopsia (no color) | #1D1D1D | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #16193D
#16193D
oklch(23.4% 0.068 276.2)
- #241D00
#241D00
oklch(23.2% 0.048 96.3)
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 #16193D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.042
- Oxford Blue #1B263B ΔE 0.046
- Navy Blue #001146 ΔE 0.046
- Dark #1B2431 ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.056
- Jet #212529 ΔE 0.066
- Midnight Purple #280137 ΔE 0.068
- Night Blue #040348 ΔE 0.068
Use #16193D 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.