#21538b color: Frank Blue
#21538b is rgb(33, 83, 139) in RGB and oklch(43.812% 0.10689 253.564) in OKLCH. Every other format, shade and contrast value is below.
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- Blue
- Dark
- Vivid
- Deep
- Cool
- ≈ Cobalt
- sky-800
- Black 45%
Inside sRGB: displays the same on any screen.
Shades
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Harmonies
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About #21538b
#21538b is a deep dark blue color. In OKLCH it has 43.8% lightness, 0.107 chroma and a hue of 254°.
Inside sRGB: displays the same on any screen.
White text on it reaches 7.85:1 contrast and black text 2.67:1, so white text reads better.
The closest named color is Frank Blue (#225288). In Tailwind CSS the closest color is sky-800.
Lighter: #21538b mixed with white
Darker: #21538b mixed with black
Calmer: #21538b with less saturation
Similar named colors
Colors that go with #21538b
Questions about #21538b
What color is #21538b?
#21538b is deep dark blue. The closest named color is Frank Blue. In RGB it is rgb(33, 83, 139), in HSL hsl(211.7, 61.63%, 33.73%) and in OKLCH oklch(43.812% 0.10689 253.564).
What colors go well with #21538b?
The complementary color of #21538b is #744600. For a calmer combination use the analogous colors #005d7c and #4b488a. The triadic partners are #823540 and #395e18.
Is white or black text more readable on #21538b?
White text reads better on #21538b: white gives a contrast ratio of 7.85:1 and black gives 2.67:1. WCAG AA asks for at least 4.5:1 for body text.
Is #21538b a warm or cool color?
#21538b is a cool color. In OKLCH its hue is 254 degrees, its lightness 43.8% and its chroma 0.107.