#555E9FDeep Indigo

#555E9F is a deep indigo in the Indigo family. In practice it looks like a soft, dusty medium indigo, and it is also commonly known as Indigo, Iris Blue. Below are all of its color space values, an 11-step scale, harmony palettes and accessibility data.

#555E9F
CSS Nameslateblue (closest)

Tints and shades (50–950)

50#f4f5fb
100#e7e9f5
200#d3d8f0
300#b5bee8
400#939ddb
500#7a85cd
600#6973b8
700#565e9d
800#474e84
900#3b4271
950#222645

Accessibility

Contrast on white
6.02:1
Contrast on black
3.49:1
  • 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 0.008 276.1); /* #f4f5fb */
  --brand-100: oklch(0.936 0.016 276.1); /* #e7e9f5 */
  --brand-200: oklch(0.885 0.034 276.1); /* #d3d8f0 */
  --brand-300: oklch(0.808 0.061 276.1); /* #b5bee8 */
  --brand-400: oklch(0.712 0.09 276.1); /* #939ddb */
  --brand-500: oklch(0.637 0.109 276.1); /* #7a85cd */
  --brand-600: oklch(0.577 0.107 276.1); /* #6973b8 */
  --brand-700: oklch(0.505 0.1 276.1); /* #565e9d */
  --brand-800: oklch(0.444 0.089 276.1); /* #474e84 */
  --brand-900: oklch(0.396 0.08 276.1); /* #3b4271 */
  --brand-950: oklch(0.281 0.057 276.1); /* #222645 */
}

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