#193878
Closest named color: Marine Blue (#01386A). oklch(35.7% 0.116 262.6), rgb(25, 56, 120).
Aa
White text reads best on this color (11.18:1).
About this color
#193878 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.116 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.030 away. White text reads best on it, at 11.18:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.87:1 |
| White text | 11.18:1 |
Values
| HEX | #193878 |
| RGB | rgb(25, 56, 120) |
| HSL | hsl(220, 66%, 28%) |
| OKLCH | oklch(35.7% 0.116 262.6) |
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 #193878 | 11.18:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #193878 | 1.87:1 | Fails | Lc 8.5 | Not readable |
| #193878 text on white | 11.18:1 | AAA | Lc 95.4 | Preferred for body text |
| #193878 text on black | 1.87:1 | 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
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAFA
oklch(88.5% 0.048 262)
-
Step 300
300
#A3C1F9
oklch(80.9% 0.086 262.7)
-
Step 400
400
#719FF7
oklch(70.8% 0.139 262.4)
-
Step 500
500
#4C84F3
oklch(63.2% 0.177 262.4)
-
Step 600
600
#306AE2
oklch(55.6% 0.193 262.5)
-
Step 700
700
#2457C4
oklch(49% 0.179 262.8)
-
Step 800
800
#1F489F
oklch(42.7% 0.149 262.8)
-
Step 900
900 (this color)
#193878
oklch(35.7% 0.116 262.6)
-
Step 950
950
#12254A
oklch(27.1% 0.073 262.2)
#193878 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) | #0F407A | 0.023 |
| Deuteranopia (no green cones) | #003777 | 0.017 |
| Tritanopia (no blue cones) | #004752 | 0.090 |
| Achromatopsia (no color) | #3B3B3B | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #193878
#193878
oklch(35.7% 0.116 262.6)
- #4F3800
#4F3800
oklch(35.7% 0.073 82.8)
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 #193878, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.030
- Twilight Blue #0A437A ΔE 0.031
- Marine #042E60 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.057
- Cobalt #1E488F ΔE 0.058
- Light Navy #155084 ΔE 0.071
- Dark Grey Blue #29465B ΔE 0.075
- Dark Slate Blue #483D8B ΔE 0.076
Use #193878 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.