#647bbb color: Ultramarine Blue
#647bbb is rgb(100, 123, 187) in RGB and oklch(59.24% 0.10202 268.177) in OKLCH. Every other format, shade and contrast value is below.
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- Blue
- Medium
- Soft
- Cool
- ≈ Steel blue
- slate-500
- Black 27%
Inside sRGB: displays the same on any screen.
Shades
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Harmonies
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About #647bbb
#647bbb is a soft blue color. In OKLCH it has 59.2% lightness, 0.102 chroma and a hue of 268°.
Inside sRGB: displays the same on any screen.
White text on it reaches 4.12:1 contrast and black text 5.09:1, so white text reads better.
The closest named color is Ultramarine Blue (#657abb). In Tailwind CSS the closest color is slate-500.
Lighter: #647bbb mixed with white
Darker: #647bbb mixed with black
Calmer: #647bbb with less saturation
Similar named colors
Colors that go with #647bbb
Questions about #647bbb
What color is #647bbb?
#647bbb is soft blue. The closest named color is Ultramarine Blue. In RGB it is rgb(100, 123, 187), in HSL hsl(224.14, 39.01%, 56.27%) and in OKLCH oklch(59.24% 0.10202 268.177).
What colors go well with #647bbb?
The complementary color of #647bbb is #977a2b. For a calmer combination use the analogous colors #3a86b4 and #8670b3. The triadic partners are #b3655b and #508f5b.
Is white or black text more readable on #647bbb?
White text reads better on #647bbb: white gives a contrast ratio of 4.12:1 and black gives 5.09:1. WCAG AA asks for at least 4.5:1 for body text.
Is #647bbb a warm or cool color?
#647bbb is a cool color. In OKLCH its hue is 268 degrees, its lightness 59.2% and its chroma 0.102.