#174470
Closest named color: Twilight Blue (#0A437A). oklch(38% 0.09 251), rgb(23, 68, 112).
Aa
White text reads best on this color (10.01:1).
About this color
#174470 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.090 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.019 away. White text reads best on it, at 10.01:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #174470 |
| RGB | rgb(23, 68, 112) |
| HSL | hsl(210, 66%, 26%) |
| OKLCH | oklch(38% 0.09 251) |
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 #174470 | 10.01:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #174470 | 2.09:1 | Fails | Lc 11.0 | Not readable |
| #174470 text on white | 10.01:1 | AAA | Lc 92.9 | Preferred for body text |
| #174470 text on black | 2.09:1 | Fails | Lc -9.5 | 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
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A1C4EB
oklch(80.8% 0.067 251.4)
-
Step 400
400
#6CA5E2
oklch(70.7% 0.108 251.1)
-
Step 500
500
#418DD9
oklch(63.1% 0.137 250.9)
-
Step 600
600
#1A75C7
oklch(55.5% 0.15 251.2)
-
Step 700
700
#0862AC
oklch(49.1% 0.14 251.1)
-
Step 800
800
#0F508B
oklch(42.6% 0.115 251.4)
-
Step 900
900 (this color)
#174470
oklch(38% 0.09 251)
-
Step 950
950
#0F2841
oklch(27.1% 0.056 250.6)
#174470 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) | #2F4772 | 0.027 |
| Deuteranopia (no green cones) | #223F6F | 0.016 |
| Tritanopia (no blue cones) | #004E54 | 0.066 |
| Achromatopsia (no color) | #424242 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174470
#174470
oklch(38% 0.09 251)
- #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 #174470, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.019
- Dark Grey Blue #29465B ΔE 0.041
- Marine Blue #01386A ΔE 0.042
- Light Navy #155084 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.052
- Cobalt #1E488F ΔE 0.053
- Charcoal #264653 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.057
Use #174470 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.