#09173D
Closest named color: Navy Blue (#001146). oklch(22% 0.076 265.3), rgb(9, 23, 61).
Aa
White text reads best on this color (17.47:1).
About this color
#09173D is a very dark, moderately saturated blue. In OKLCH its lightness is 22%, its chroma 0.076 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.028 away. White text reads best on it, at 17.47:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.20:1 |
| White text | 17.47:1 |
Values
| HEX | #09173D |
| RGB | rgb(9, 23, 61) |
| HSL | hsl(224, 74%, 14%) |
| OKLCH | oklch(22% 0.076 265.3) |
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 #09173D | 17.47:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #09173D | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #09173D text on white | 17.47:1 | AAA | Lc 104.1 | Preferred for body text |
| #09173D text on black | 1.20:1 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FB
oklch(88.4% 0.05 265.4)
-
Step 300
300
#A5C0FB
oklch(80.9% 0.089 265.4)
-
Step 400
400
#759DFA
oklch(70.7% 0.144 265.3)
-
Step 500
500
#5381F7
oklch(63.1% 0.183 265.4)
-
Step 600
600
#3967E6
oklch(55.6% 0.199 265.3)
-
Step 700
700
#2C55C8
oklch(49.2% 0.185 265.2)
-
Step 800
800
#2546A1
oklch(42.7% 0.153 265.3)
-
Step 900
900
#223C80
oklch(37.7% 0.119 265.3)
-
Step 950
950 (this color)
#09173D
oklch(22% 0.076 265.3)
#09173D 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) | #001C3E | 0.017 |
| Deuteranopia (no green cones) | #00173C | 0.012 |
| Tritanopia (no blue cones) | #002027 | 0.059 |
| Achromatopsia (no color) | #1A1A1A | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09173D
#09173D
oklch(22% 0.076 265.3)
- #241900
#241900
oklch(22.1% 0.045 86.5)
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 #09173D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.028
- Rich Black #0D1B2A ΔE 0.042
- Night Blue #040348 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.060
- Dark Indigo #1F0954 ΔE 0.061
- Dark #1B2431 ΔE 0.061
- Dark Navy #000435 ΔE 0.063
- Very Dark Blue #000133 ΔE 0.075
Use #09173D 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.