#21d5ef color: Thousand Sons Blue
#21d5ef is rgb(33, 213, 239) in RGB and oklch(80.214% 0.13467 210.769) in OKLCH. Every other format, shade and contrast value is below.
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- Cyan
- Light
- Vivid
- Cool
- ≈ Sky blue
- cyan-400
- Black 6%
Inside sRGB: displays the same on any screen.
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About #21d5ef
#21d5ef is a bright light cyan color. In OKLCH it has 80.2% lightness, 0.135 chroma and a hue of 211°.
Inside sRGB: displays the same on any screen.
White text on it reaches 1.78:1 contrast and black text 11.83:1, so black text reads better.
The closest named color is Thousand Sons Blue (#02d8e9). In Tailwind CSS the closest color is cyan-400.
Lighter: #21d5ef mixed with white
Darker: #21d5ef mixed with black
Calmer: #21d5ef with less saturation
Similar named colors
Colors that go with #21d5ef
Questions about #21d5ef
What color is #21d5ef?
#21d5ef is bright light cyan. The closest named color is Thousand Sons Blue. In RGB it is rgb(33, 213, 239), in HSL hsl(187.57, 86.55%, 53.33%) and in OKLCH oklch(80.214% 0.13467 210.769).
What colors go well with #21d5ef?
The complementary color of #21d5ef is #ff9c89. For a calmer combination use the analogous colors #34dac3 and #64c9ff. The triadic partners are #f09de7 and #dfba4b.
Is white or black text more readable on #21d5ef?
Black text reads better on #21d5ef: white gives a contrast ratio of 1.78:1 and black gives 11.83:1. WCAG AA asks for at least 4.5:1 for body text.
Is #21d5ef a warm or cool color?
#21d5ef is a cool color. In OKLCH its hue is 211 degrees, its lightness 80.2% and its chroma 0.135.