#183d63 color: Poseidon
#183d63 is rgb(24, 61, 99) in RGB and oklch(35.374% 0.07867 251.535) in OKLCH. Every other format, shade and contrast value is below.
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- Blue
- Dark
- Soft
- Cool
- ≈ Charcoal
- slate-700
- Black 61%
Inside sRGB: displays the same on any screen.
Shades
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About #183d63
#183d63 is a soft dark blue color. In OKLCH it has 35.4% lightness, 0.079 chroma and a hue of 252°.
Inside sRGB: displays the same on any screen.
White text on it reaches 11.13:1 contrast and black text 1.89:1, so white text reads better.
The closest named color is Poseidon (#143c5d). In Tailwind CSS the closest color is slate-700.
Lighter: #183d63 mixed with white
Darker: #183d63 mixed with black
Calmer: #183d63 with less saturation
Similar named colors
Colors that go with #183d63
Questions about #183d63
What color is #183d63?
#183d63 is soft dark blue. The closest named color is Poseidon. In RGB it is rgb(24, 61, 99), in HSL hsl(210.4, 60.98%, 24.12%) and in OKLCH oklch(35.374% 0.07867 251.535).
What colors go well with #183d63?
The complementary color of #183d63 is #543300. For a calmer combination use the analogous colors #004458 and #353563. The triadic partners are #5d2831 and #2c4413.
Is white or black text more readable on #183d63?
White text reads better on #183d63: white gives a contrast ratio of 11.13:1 and black gives 1.89:1. WCAG AA asks for at least 4.5:1 for body text.
Is #183d63 a warm or cool color?
#183d63 is a cool color. In OKLCH its hue is 252 degrees, its lightness 35.4% and its chroma 0.079.