#309BF3 — Blue
#309BF3 is a blue in the Blue family. In practice it looks like a balanced 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.
#309BF3
Tints and shades (50–950)
Accessibility
Contrast on white
2.95:1
Contrast on black
7.11:1
- AA (4.5:1) on whiteFail
- AA Large (3:1) on whiteFail
- AAA (7:1) on whiteFail
- AAA Large (4.5:1) on whiteFail
- UI components (3:1) on whiteFail
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 0.012 248.3); /* #eff6fd */
--brand-100: oklch(0.936 0.025 248.3); /* #ddecfb */
--brand-200: oklch(0.885 0.052 248.3); /* #bfddfb */
--brand-300: oklch(0.808 0.095 248.3); /* #8fc6fb */
--brand-400: oklch(0.712 0.14 248.3); /* #52a8f5 */
--brand-500: oklch(0.637 0.169 248.3); /* #0e90eb */
--brand-600: oklch(0.577 0.156 248.3); /* #007dd0 */
--brand-700: oklch(0.505 0.137 248.3); /* #0068ae */
--brand-800: oklch(0.444 0.12 248.3); /* #005692 */
--brand-900: oklch(0.396 0.107 248.3); /* #00497d */
--brand-950: oklch(0.281 0.076 248.3); /* #002b4c */
}