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#1b356d color: Atlantic Navy

#1b356d is rgb(27, 53, 109) in RGB and oklch(34.251% 0.10265 263.283) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

221°
100%

34.3%
0.103
263°
  • Blue
  • Dark
  • Soft
  • Cool
  • ≈ Midnight blue
  • indigo-900
  • Black 57%

Inside sRGB: displays the same on any screen.

White text
11.82:1Readable · AA
Lc -100
Black text
1.78:1Hard to read
Lc 0

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About #1b356d

#1b356d is a soft dark blue color. In OKLCH it has 34.3% lightness, 0.103 chroma and a hue of 263°.

Inside sRGB: displays the same on any screen.

White text on it reaches 11.82:1 contrast and black text 1.78:1, so white text reads better.

The closest named color is Atlantic Navy (#13336f). In Tailwind CSS the closest color is indigo-900.

More dark blue colors

Lighter: #1b356d mixed with white

  1. 1b356d
  2. 2f487c
  3. 435b8a
  4. 596e99
  5. 6f82a7
  6. 8596b6
  7. 9daac5
  8. b4bfd3
  9. cdd4e2
  10. e6e9f0

Darker: #1b356d mixed with black

  1. 1b356d
  2. 162d5e
  3. 11254f
  4. 0c1d41
  5. 081533
  6. 050e26
  7. 020819
  8. 01030d
  9. 000104
  10. 000001

Calmer: #1b356d with less saturation

  1. 1b356d
  2. 1e3668
  3. 213763
  4. 25375e
  5. 283859
  6. 2b3853
  7. 2d394e
  8. 303949
  9. 333944
  10. 36393e

Questions about #1b356d

What color is #1b356d?

#1b356d is soft dark blue. The closest named color is Atlantic Navy. In RGB it is rgb(27, 53, 109), in HSL hsl(220.98, 60.29%, 26.67%) and in OKLCH oklch(34.251% 0.10265 263.283).

What colors go well with #1b356d?

The complementary color of #1b356d is #4e3300. For a calmer combination use the analogous colors #003f61 and #3c2b68. The triadic partners are #631c1e and #0c450e.

Is white or black text more readable on #1b356d?

White text reads better on #1b356d: white gives a contrast ratio of 11.82:1 and black gives 1.78:1. WCAG AA asks for at least 4.5:1 for body text.

Is #1b356d a warm or cool color?

#1b356d is a cool color. In OKLCH its hue is 263 degrees, its lightness 34.3% and its chroma 0.103.