#17364E
Closest named color: Prussian Blue (#1D3557). oklch(32.2% 0.057 244.3), rgb(23, 54, 78).
Aa
White text reads best on this color (12.54:1).
About this color
#17364E is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.057 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.019 away. White text reads best on it, at 12.54:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.67:1 |
| White text | 12.54:1 |
Values
| HEX | #17364E |
| RGB | rgb(23, 54, 78) |
| HSL | hsl(206, 54%, 20%) |
| OKLCH | oklch(32.2% 0.057 244.3) |
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 #17364E | 12.54:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #17364E | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #17364E text on white | 12.54:1 | AAA | Lc 98.3 | Preferred for body text |
| #17364E text on black | 1.67:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C5DCF1
oklch(88.4% 0.038 245.8)
-
Step 300
300
#9CC6E9
oklch(80.9% 0.067 243.9)
-
Step 400
400
#63A8DF
oklch(70.8% 0.107 244.2)
-
Step 500
500
#2E90D6
oklch(63% 0.137 244.6)
-
Step 600
600
#0079BD
oklch(55.5% 0.138 244.2)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#07456D
oklch(37.7% 0.089 244.4)
-
Step 950
950 (this color)
#17364E
oklch(32.2% 0.057 244.3)
#17364E 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) | #2B374F | 0.026 |
| Deuteranopia (no green cones) | #24314E | 0.021 |
| Tritanopia (no blue cones) | #003C3E | 0.043 |
| Achromatopsia (no color) | #333333 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17364E
#17364E
oklch(32.2% 0.057 244.3)
- #472C11
#472C11
oklch(32% 0.056 63.2)
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 #17364E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.019
- Midnight Green #073B4C ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.021
- Gunmetal #293241 ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.038
- Marine #042E60 ΔE 0.048
- Onyx #343A40 ΔE 0.049
- Marine Blue #01386A ΔE 0.050
Use #17364E 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.