#21b3e4 color: Blue Atoll
#21b3e4 is rgb(33, 179, 228) in RGB and oklch(71.701% 0.13272 227.476) in OKLCH. Every other format, shade and contrast value is below.
Read as HEX
- Ctrl Vpaste a color anywhere
- Spacerandom color
- Ccopy HEX
- Sky blue
- Light
- Vivid
- Cool
- ≈ Sky blue
- cyan-500
- Black 11%
Inside sRGB: displays the same on any screen.
Shades
From lightest to darkest. Click a shade to use it.
Harmonies
Open as paletteRecent
Colors you stop on or copy appear here. They stay on this device.
About #21b3e4
#21b3e4 is a bright light sky blue color. In OKLCH it has 71.7% lightness, 0.133 chroma and a hue of 227°.
Inside sRGB: displays the same on any screen.
White text on it reaches 2.43:1 contrast and black text 8.63:1, so black text reads better.
The closest named color is Blue Atoll (#00b3e1). In Tailwind CSS the closest color is cyan-500.
Lighter: #21b3e4 mixed with white
Darker: #21b3e4 mixed with black
Calmer: #21b3e4 with less saturation
Similar named colors
Colors that go with #21b3e4
Questions about #21b3e4
What color is #21b3e4?
#21b3e4 is bright light sky blue. The closest named color is Blue Atoll. In RGB it is rgb(33, 179, 228), in HSL hsl(195.08, 78.31%, 51.18%) and in OKLCH oklch(71.701% 0.13272 227.476).
What colors go well with #21b3e4?
The complementary color of #21b3e4 is #e68856. For a calmer combination use the analogous colors #00bcc1 and #6da5f6. The triadic partners are #df7fb3 and #ada937.
Is white or black text more readable on #21b3e4?
Black text reads better on #21b3e4: white gives a contrast ratio of 2.43:1 and black gives 8.63:1. WCAG AA asks for at least 4.5:1 for body text.
Is #21b3e4 a warm or cool color?
#21b3e4 is a cool color. In OKLCH its hue is 227 degrees, its lightness 71.7% and its chroma 0.133.