#183DA8Deep Blue

#183DA8 is a deep blue in the Blue family. In practice it looks like a balanced medium-dark navy blue, and it is also commonly known as Navy Blue, Sapphire. Below are all of its color space values, an 11-step scale, harmony palettes and accessibility data.

#183DA8
CSS Namedarkslateblue (closest)

Tints and shades (50–950)

50#f1f6ff
100#e1eafd
200#c7d9ff
300#a2c0ff
400#739eff
500#5283fa
600#4271e3
700#325cc4
800#284ca6
900#203f8f
950#102558

Accessibility

Contrast on white
9.24:1
Contrast on black
2.27:1
  • AA (4.5:1) on whitePass
  • AA Large (3:1) on whitePass
  • AAA (7:1) on whitePass
  • 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 0.013 264.7); /* #f1f6ff */
  --brand-100: oklch(0.936 0.028 264.7); /* #e1eafd */
  --brand-200: oklch(0.885 0.056 264.7); /* #c7d9ff */
  --brand-300: oklch(0.808 0.096 264.7); /* #a2c0ff */
  --brand-400: oklch(0.712 0.149 264.7); /* #739eff */
  --brand-500: oklch(0.637 0.185 264.7); /* #5283fa */
  --brand-600: oklch(0.577 0.182 264.7); /* #4271e3 */
  --brand-700: oklch(0.505 0.171 264.7); /* #325cc4 */
  --brand-800: oklch(0.444 0.152 264.7); /* #284ca6 */
  --brand-900: oklch(0.396 0.137 264.7); /* #203f8f */
  --brand-950: oklch(0.281 0.096 264.7); /* #102558 */
}

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