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#171b4e color: Tetsu-Kon Blue

#171b4e is rgb(23, 27, 78) in RGB and oklch(25.426% 0.09258 274.326) in OKLCH. Every other format, shade and contrast value is below.

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236°
100%

25.4%
0.093
274°
  • Indigo
  • Very dark
  • Soft
  • Cool
  • ≈ Midnight blue
  • indigo-950
  • Black 69%

Inside sRGB: displays the same on any screen.

White text
16.11:1Readable · AA
Lc -105
Black text
1.30:1Hard to read
Lc 0

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About #171b4e

#171b4e is a soft very dark indigo color. In OKLCH it has 25.4% lightness, 0.093 chroma and a hue of 274°.

Inside sRGB: displays the same on any screen.

White text on it reaches 16.11:1 contrast and black text 1.3:1, so white text reads better.

The closest named color is Tetsu-Kon Blue (#17184b). In Tailwind CSS the closest color is indigo-950.

More very dark indigo colors

Lighter: #171b4e mixed with white

  1. 171b4e
  2. 29305f
  3. 3d4570
  4. 525a82
  5. 687093
  6. 7f87a5
  7. 989eb7
  8. b0b5c8
  9. cacddb
  10. e4e6ed

Darker: #171b4e mixed with black

  1. 171b4e
  2. 121643
  3. 0e1138
  4. 0a0c2d
  5. 060823
  6. 040519
  7. 02020f
  8. 010107
  9. 000002
  10. 000000

Calmer: #171b4e with less saturation

  1. 171b4e
  2. 181d4a
  3. 191e46
  4. 1a1f41
  5. 1b203d
  6. 1c2139
  7. 1d2135
  8. 1e2230
  9. 20222c
  10. 212227

Questions about #171b4e

What color is #171b4e?

#171b4e is soft very dark indigo. The closest named color is Tetsu-Kon Blue. In RGB it is rgb(23, 27, 78), in HSL hsl(235.64, 54.46%, 19.8%) and in OKLCH oklch(25.426% 0.09258 274.326).

What colors go well with #171b4e?

The complementary color of #171b4e is #2e2100. For a calmer combination use the analogous colors #00244b and #2d1246. The triadic partners are #450800 and #002e0b.

Is white or black text more readable on #171b4e?

White text reads better on #171b4e: white gives a contrast ratio of 16.11:1 and black gives 1.3:1. WCAG AA asks for at least 4.5:1 for body text.

Is #171b4e a warm or cool color?

#171b4e is a cool color. In OKLCH its hue is 274 degrees, its lightness 25.4% and its chroma 0.093.