#687bbb color: Ultramarine Blue
#687bbb is rgb(104, 123, 187) in RGB and oklch(59.508% 0.10067 270.54) in OKLCH. Every other format, shade and contrast value is below.
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- Indigo
- 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 #687bbb
#687bbb is a soft indigo color. In OKLCH it has 59.5% lightness, 0.101 chroma and a hue of 271°.
Inside sRGB: displays the same on any screen.
White text on it reaches 4.09:1 contrast and black text 5.14:1, so white text reads better.
The closest named color is Ultramarine Blue (#657abb). In Tailwind CSS the closest color is slate-500.
Lighter: #687bbb mixed with white
Darker: #687bbb mixed with black
Calmer: #687bbb with less saturation
Similar named colors
Colors that go with #687bbb
Questions about #687bbb
What color is #687bbb?
#687bbb is soft indigo. The closest named color is Ultramarine Blue. In RGB it is rgb(104, 123, 187), in HSL hsl(226.27, 37.9%, 57.06%) and in OKLCH oklch(59.508% 0.10067 270.54).
What colors go well with #687bbb?
The complementary color of #687bbb is #967c2e. For a calmer combination use the analogous colors #4086b5 and #8970b2. The triadic partners are #b3675a and #4e905f.
Is white or black text more readable on #687bbb?
White text reads better on #687bbb: white gives a contrast ratio of 4.09:1 and black gives 5.14:1. WCAG AA asks for at least 4.5:1 for body text.
Is #687bbb a warm or cool color?
#687bbb is a cool color. In OKLCH its hue is 271 degrees, its lightness 59.5% and its chroma 0.101.