#17446E
Closest named color: Twilight Blue (#0A437A). oklch(37.9% 0.087 250), rgb(23, 68, 110).
Aa
White text reads best on this color (10.05:1).
About this color
#17446E is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.087 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.022 away. White text reads best on it, at 10.05:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #17446E |
| RGB | rgb(23, 68, 110) |
| HSL | hsl(209, 65%, 26%) |
| OKLCH | oklch(37.9% 0.087 250) |
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 #17446E | 10.05:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #17446E | 2.08:1 | Fails | Lc 10.9 | Not readable |
| #17446E text on white | 10.05:1 | AAA | Lc 93.0 | Preferred for body text |
| #17446E text on black | 2.08:1 | Fails | Lc -9.4 | 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 900.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DCF1
oklch(88.6% 0.036 249.5)
-
Step 300
300
#A1C5EA
oklch(81% 0.065 249.3)
-
Step 400
400
#6DA5DF
oklch(70.7% 0.104 250.3)
-
Step 500
500
#428ED6
oklch(63.2% 0.132 249.6)
-
Step 600
600
#1B76C4
oklch(55.6% 0.145 250.1)
-
Step 700
700
#0A63A9
oklch(49.1% 0.134 249.9)
-
Step 800
800
#0F5189
oklch(42.7% 0.112 250)
-
Step 900
900 (this color)
#17446E
oklch(37.9% 0.087 250)
-
Step 950
950
#0F2840
oklch(27% 0.055 249.7)
#17446E 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) | #314670 | 0.029 |
| Deuteranopia (no green cones) | #243E6D | 0.020 |
| Tritanopia (no blue cones) | #004E53 | 0.065 |
| Achromatopsia (no color) | #424242 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17446E
#17446E
oklch(37.9% 0.087 250)
- #5D3900
#5D3900
oklch(37.9% 0.082 70.4)
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 #17446E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.022
- Dark Grey Blue #29465B ΔE 0.038
- Marine Blue #01386A ΔE 0.042
- Light Navy #155084 ΔE 0.047
- Charcoal #264653 ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.055
- Cobalt #1E488F ΔE 0.057
Use #17446E 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.