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#183c68 color: Blue Opal

#183c68 is rgb(24, 60, 104) in RGB and oklch(35.456% 0.08714 255.052) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

213°
100%

35.5%
0.087
255°
  • Blue
  • Dark
  • Vivid
  • Deep
  • Cool
  • ≈ Charcoal
  • sky-900
  • Black 59%

Inside sRGB: displays the same on any screen.

White text
11.14:1Readable · AA
Lc -99
Black text
1.89:1Hard to read
Lc 8

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About #183c68

#183c68 is a deep dark blue color. In OKLCH it has 35.5% lightness, 0.087 chroma and a hue of 255°.

Inside sRGB: displays the same on any screen.

White text on it reaches 11.14:1 contrast and black text 1.89:1, 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: #183c68 mixed with white

  1. 183c68
  2. 2e4e77
  3. 436086
  4. 597395
  5. 6f86a3
  6. 8699b3
  7. 9dadc2
  8. b5c1d1
  9. cdd5e0
  10. e6eaf0

Darker: #183c68 mixed with black

  1. 183c68
  2. 133359
  3. 0f2a4b
  4. 0a213e
  5. 071930
  6. 041124
  7. 020a18
  8. 01040c
  9. 000104
  10. 000000

Calmer: #183c68 with less saturation

  1. 183c68
  2. 1d3c64
  3. 213d5f
  4. 253d5b
  5. 293d57
  6. 2c3d52
  7. 2f3d4e
  8. 333d49
  9. 363c45
  10. 393c40

Questions about #183c68

What color is #183c68?

#183c68 is deep dark blue. The closest named color is Blue Opal. In RGB it is rgb(24, 60, 104), in HSL hsl(213, 62.5%, 25.1%) and in OKLCH oklch(35.456% 0.08714 255.052).

What colors go well with #183c68?

The complementary color of #183c68 is #563300. For a calmer combination use the analogous colors #00445e and #383367. The triadic partners are #61252d and #264511.

Is white or black text more readable on #183c68?

White text reads better on #183c68: white gives a contrast ratio of 11.14:1 and black gives 1.89:1. WCAG AA asks for at least 4.5:1 for body text.

Is #183c68 a warm or cool color?

#183c68 is a cool color. In OKLCH its hue is 255 degrees, its lightness 35.5% and its chroma 0.087.