#378cf3 color: Seljuk Blue
#378cf3 is rgb(55, 140, 243) in RGB and oklch(64.104% 0.17417 255.378) in OKLCH. Every other format, shade and contrast value is below.
Read as HEX
- Ctrl Vpaste a color anywhere
- Spacerandom color
- Ccopy HEX
- Blue
- Medium
- Vivid
- Cool
- ≈ Azure
- blue-500
- Black 5%
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 #378cf3
#378cf3 is a bright blue color. In OKLCH it has 64.1% lightness, 0.174 chroma and a hue of 255°.
Inside sRGB: displays the same on any screen.
White text on it reaches 3.38:1 contrast and black text 6.21:1, so white text reads better.
The closest named color is Seljuk Blue (#4488ee). In Tailwind CSS the closest color is blue-500.
Lighter: #378cf3 mixed with white
Darker: #378cf3 mixed with black
Calmer: #378cf3 with less saturation
Similar named colors
Colors that go with #378cf3
Questions about #378cf3
What color is #378cf3?
#378cf3 is bright blue. The closest named color is Seljuk Blue. In RGB it is rgb(55, 140, 243), in HSL hsl(212.87, 88.68%, 58.43%) and in OKLCH oklch(64.104% 0.17417 255.378).
What colors go well with #378cf3?
The complementary color of #378cf3 is #c17c00. For a calmer combination use the analogous colors #009cce and #8578f0. The triadic partners are #e25669 and #58a221.
Is white or black text more readable on #378cf3?
White text reads better on #378cf3: white gives a contrast ratio of 3.38:1 and black gives 6.21:1. WCAG AA asks for at least 4.5:1 for body text.
Is #378cf3 a warm or cool color?
#378cf3 is a cool color. In OKLCH its hue is 255 degrees, its lightness 64.1% and its chroma 0.174.