#1b4e80 color: Classic Blue
#1b4e80 is rgb(27, 78, 128) in RGB and oklch(41.671% 0.09941 251.167) in OKLCH. Every other format, shade and contrast value is below.
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- Blue
- Dark
- Vivid
- Deep
- Cool
- ≈ Cobalt
- sky-900
- Black 50%
Inside sRGB: displays the same on any screen.
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About #1b4e80
#1b4e80 is a deep dark blue color. In OKLCH it has 41.7% lightness, 0.099 chroma and a hue of 251°.
Inside sRGB: displays the same on any screen.
White text on it reaches 8.58:1 contrast and black text 2.45:1, so white text reads better.
The closest named color is Classic Blue (#0f4e81). In Tailwind CSS the closest color is sky-900.
Lighter: #1b4e80 mixed with white
Darker: #1b4e80 mixed with black
Calmer: #1b4e80 with less saturation
Similar named colors
Colors that go with #1b4e80
Questions about #1b4e80
What color is #1b4e80?
#1b4e80 is deep dark blue. The closest named color is Classic Blue. In RGB it is rgb(27, 78, 128), in HSL hsl(209.7, 65.16%, 30.39%) and in OKLCH oklch(41.671% 0.09941 251.167).
What colors go well with #1b4e80?
The complementary color of #1b4e80 is #6d4100. For a calmer combination use the analogous colors #005771 and #444480. The triadic partners are #78323e and #385714.
Is white or black text more readable on #1b4e80?
White text reads better on #1b4e80: white gives a contrast ratio of 8.58:1 and black gives 2.45:1. WCAG AA asks for at least 4.5:1 for body text.
Is #1b4e80 a warm or cool color?
#1b4e80 is a cool color. In OKLCH its hue is 251 degrees, its lightness 41.7% and its chroma 0.099.