#174A6E
Closest named color: Dark Grey Blue (#29465B). oklch(39.4% 0.081 243.7), rgb(23, 74, 110).
Aa
White text reads best on this color (9.37:1).
About this color
#174A6E is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.081 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.034 away. White text reads best on it, at 9.37:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.24:1 |
| White text | 9.37:1 |
Values
| HEX | #174A6E |
| RGB | rgb(23, 74, 110) |
| HSL | hsl(205, 65%, 26%) |
| OKLCH | oklch(39.4% 0.081 243.7) |
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 #174A6E | 9.37:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #174A6E | 2.24:1 | Fails | Lc 12.6 | Not readable |
| #174A6E text on white | 9.37:1 | AAA | Lc 91.4 | Preferred for body text |
| #174A6E text on black | 2.24:1 | Fails | Lc -11.0 | 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 900.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF5
oklch(93.5% 0.018 245.4)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300
#A0C6E5
oklch(81% 0.06 243.2)
-
Step 400
400
#69A7D9
oklch(70.6% 0.098 244.1)
-
Step 500
500
#3B90CE
oklch(63% 0.124 243.9)
-
Step 600
600
#0579BB
oklch(55.5% 0.135 243.8)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#025383
oklch(42.6% 0.104 244)
-
Step 900
900 (this color)
#174A6E
oklch(39.4% 0.081 243.7)
-
Step 950
950
#0D293D
oklch(27% 0.05 242.9)
#174A6E 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) | #394B70 | 0.036 |
| Deuteranopia (no green cones) | #2D436D | 0.027 |
| Tritanopia (no blue cones) | #005357 | 0.057 |
| Achromatopsia (no color) | #464646 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174A6E
#174A6E
oklch(39.4% 0.081 243.7)
- #643B0D
#643B0D
oklch(39.4% 0.081 63.4)
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 #174A6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.034
- Twilight Blue #0A437A ΔE 0.034
- Light Navy #155084 ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.040
- Charcoal #264653 ΔE 0.045
- Deep Teal #00555A ΔE 0.057
- Dusk Blue #26538D ΔE 0.058
- Cobalt #1E488F ΔE 0.058
Use #174A6E 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.