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#183f68 color: Blue Opal

#183f68 is rgb(24, 63, 104) in RGB and oklch(36.218% 0.08361 252.168) in OKLCH. Every other format, shade and contrast value is below.

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211°
100%

36.2%
0.084
252°
  • Blue
  • Dark
  • Soft
  • Cool
  • ≈ Charcoal
  • sky-900
  • Black 59%

Inside sRGB: displays the same on any screen.

White text
10.77:1Readable · AA
Lc -99
Black text
1.95:1Hard to read
Lc 9

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About #183f68

#183f68 is a soft dark blue color. In OKLCH it has 36.2% lightness, 0.084 chroma and a hue of 252°.

Inside sRGB: displays the same on any screen.

White text on it reaches 10.77:1 contrast and black text 1.95:1, so white text reads better.

The closest named color is Blue Opal (#124168). In Tailwind CSS the closest color is sky-900.

More dark blue colors

Lighter: #183f68 mixed with white

  1. 183f68
  2. 2e5177
  3. 446385
  4. 5a7594
  5. 7088a3
  6. 869bb2
  7. 9eaec1
  8. b5c2d1
  9. cdd6e0
  10. e6eaef

Darker: #183f68 mixed with black

  1. 183f68
  2. 133559
  3. 0f2c4b
  4. 0a233e
  5. 071b30
  6. 041224
  7. 020a18
  8. 01040c
  9. 000104
  10. 000000

Calmer: #183f68 with less saturation

  1. 183f68
  2. 1d3f64
  3. 223f60
  4. 263f5c
  5. 2a3f57
  6. 2e3f53
  7. 313f4f
  8. 343f4b
  9. 373e46
  10. 3b3e42

Questions about #183f68

What color is #183f68?

#183f68 is soft dark blue. The closest named color is Blue Opal. In RGB it is rgb(24, 63, 104), in HSL hsl(210.75, 62.5%, 25.1%) and in OKLCH oklch(36.218% 0.08361 252.168).

What colors go well with #183f68?

The complementary color of #183f68 is #583500. For a calmer combination use the analogous colors #00465d and #383768. The triadic partners are #622832 and #2c4613.

Is white or black text more readable on #183f68?

White text reads better on #183f68: white gives a contrast ratio of 10.77:1 and black gives 1.95:1. WCAG AA asks for at least 4.5:1 for body text.

Is #183f68 a warm or cool color?

#183f68 is a cool color. In OKLCH its hue is 252 degrees, its lightness 36.2% and its chroma 0.084.