#174366
Closest named color: Dark Grey Blue (#29465B). oklch(37.1% 0.077 246.1), rgb(23, 67, 102).
Aa
White text reads best on this color (10.33:1).
About this color
#174366 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.077 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 10.33:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.03:1 |
| White text | 10.33:1 |
Values
| HEX | #174366 |
| RGB | rgb(23, 67, 102) |
| HSL | hsl(207, 63%, 25%) |
| OKLCH | oklch(37.1% 0.077 246.1) |
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 #174366 | 10.33:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #174366 | 2.03:1 | Fails | Lc 10.2 | Not readable |
| #174366 text on white | 10.33:1 | AAA | Lc 93.7 | Preferred for body text |
| #174366 text on black | 2.03:1 | Fails | Lc -8.8 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEE
oklch(88.6% 0.032 246.7)
-
Step 300
300
#A3C5E4
oklch(80.9% 0.057 246.1)
-
Step 400
400
#6FA6D7
oklch(70.6% 0.093 246.4)
-
Step 500
500
#458FCC
oklch(63% 0.118 246.1)
-
Step 600
600
#2178B9
oklch(55.5% 0.128 246.2)
-
Step 700
700
#1165A0
oklch(49.1% 0.12 246.2)
-
Step 800
800
#145381
oklch(42.8% 0.098 245.7)
-
Step 900
900 (this color)
#174366
oklch(37.1% 0.077 246.1)
-
Step 950
950
#10283D
oklch(26.9% 0.05 247.3)
#174366 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) | #334468 | 0.031 |
| Deuteranopia (no green cones) | #283D65 | 0.023 |
| Tritanopia (no blue cones) | #004B50 | 0.054 |
| Achromatopsia (no color) | #404040 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174366
#174366
oklch(37.1% 0.077 246.1)
- #5B3608
#5B3608
oklch(37% 0.077 65.5)
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 #174366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Twilight Blue #0A437A ΔE 0.035
- Charcoal #264653 ΔE 0.039
- Marine Blue #01386A ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.046
- Midnight Green #073B4C ΔE 0.051
- Light Navy #155084 ΔE 0.059
Use #174366 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.