#366ACCDeep Blue

#366ACC is a deep 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.

#366ACC
CSS Nameroyalblue (closest)

Tints and shades (50–950)

50#f1f6fe
100#e1eafc
200#c6dafd
300#9ec1fe
400#70a1fa
500#4e87f1
600#3e74da
700#2e5fbd
800#244f9f
900#1d4289
950#0e2654

Accessibility

Contrast on white
5.13:1
Contrast on black
4.09:1
  • 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 0.012 261.6); /* #f1f6fe */
  --brand-100: oklch(0.936 0.026 261.6); /* #e1eafc */
  --brand-200: oklch(0.885 0.053 261.6); /* #c6dafd */
  --brand-300: oklch(0.808 0.095 261.6); /* #9ec1fe */
  --brand-400: oklch(0.712 0.141 261.6); /* #70a1fa */
  --brand-500: oklch(0.637 0.17 261.6); /* #4e87f1 */
  --brand-600: oklch(0.577 0.167 261.6); /* #3e74da */
  --brand-700: oklch(0.505 0.157 261.6); /* #2e5fbd */
  --brand-800: oklch(0.444 0.14 261.6); /* #244f9f */
  --brand-900: oklch(0.396 0.126 261.6); /* #1d4289 */
  --brand-950: oklch(0.281 0.089 261.6); /* #0e2654 */
}

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