#193478
Closest named color: Marine Blue (#01386A). oklch(34.8% 0.121 264.5), rgb(25, 52, 120).
Aa
White text reads best on this color (11.64:1).
About this color
#193478 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.121 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.032 away. White text reads best on it, at 11.64:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.80:1 |
| White text | 11.64:1 |
Values
| HEX | #193478 |
| RGB | rgb(25, 52, 120) |
| HSL | hsl(223, 66%, 28%) |
| OKLCH | oklch(34.8% 0.121 264.5) |
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 #193478 | 11.64:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #193478 | 1.80:1 | Fails | Lc 7.5 | Not readable |
| #193478 text on white | 11.64:1 | AAA | Lc 96.3 | Preferred for body text |
| #193478 text on black | 1.80:1 | 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 900.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FB
oklch(88.4% 0.05 265.4)
-
Step 300
300
#A3C0FC
oklch(80.8% 0.091 264.4)
-
Step 400
400
#739DFB
oklch(70.7% 0.146 264.7)
-
Step 500
500
#4F81F8
oklch(63% 0.186 264.5)
-
Step 600
600
#3567E7
oklch(55.6% 0.202 264.5)
-
Step 700
700
#2855C9
oklch(49.2% 0.187 264.4)
-
Step 800
800
#2246A2
oklch(42.6% 0.155 264.5)
-
Step 900
900 (this color)
#193478
oklch(34.8% 0.121 264.5)
-
Step 950
950
#13244B
oklch(27% 0.076 264.2)
#193478 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) | #003D7A | 0.026 |
| Deuteranopia (no green cones) | #003477 | 0.017 |
| Tritanopia (no blue cones) | #004550 | 0.097 |
| Achromatopsia (no color) | #383838 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #193478
#193478
oklch(34.8% 0.121 264.5)
- #4B3600
#4B3600
oklch(34.7% 0.071 84.3)
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 #193478, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.032
- Twilight Blue #0A437A ΔE 0.042
- Marine #042E60 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.058
- Cobalt #1E488F ΔE 0.067
- Midnight Blue #191970 ΔE 0.067
- Royal #0C1793 ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.080
Use #193478 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.