#3F66FF — Vivid Blue
#3F66FF is a vivid blue in the Blue family. In practice it looks like a bold, saturated medium blue, and it is also commonly known as Blue, Cobalt Blue. Below are all of its color space values, an 11-step scale, harmony palettes and accessibility data.
#3F66FF
Tints and shades (50–950)
Accessibility
Contrast on white
4.61:1
Contrast on black
4.56:1
- AA (4.5:1) on whitePass
- AA Large (3:1) on whitePass
- AAA (7:1) on whiteFail
- AAA Large (4.5:1) on whitePass
- UI components (3:1) on whitePass
Need a passing variant? Repair this color in the contrast checker.
Complementary palette
Analogous palette
Triadic palette
Copy-ready CSS
brand-scale.css
:root {
--brand-50: oklch(0.971 0.014 267.4); /* #f1f5ff */
--brand-100: oklch(0.936 0.03 267.4); /* #e1eaff */
--brand-200: oklch(0.885 0.056 267.4); /* #c9d9ff */
--brand-300: oklch(0.808 0.096 267.4); /* #a5bfff */
--brand-400: oklch(0.712 0.149 267.4); /* #799dff */
--brand-500: oklch(0.637 0.194 267.4); /* #5880ff */
--brand-600: oklch(0.577 0.231 267.4); /* #3f66ff */
--brand-700: oklch(0.505 0.223 267.4); /* #2f4fe1 */
--brand-800: oklch(0.444 0.199 267.4); /* #2641bf */
--brand-900: oklch(0.396 0.179 267.4); /* #1e36a5 */
--brand-950: oklch(0.281 0.126 267.4); /* #0f1e66 */
}