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#183c69 color: Blue Opal

#183c69 is rgb(24, 60, 105) in RGB and oklch(35.526% 0.08862 255.476) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

213°
100%

35.5%
0.089
255°
  • Blue
  • Dark
  • Vivid
  • Deep
  • Cool
  • ≈ Charcoal
  • sky-900
  • Black 59%

Inside sRGB: displays the same on any screen.

White text
11.12:1Readable · AA
Lc -99
Black text
1.89:1Hard to read
Lc 8

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About #183c69

#183c69 is a deep dark blue color. In OKLCH it has 35.5% lightness, 0.089 chroma and a hue of 255°.

Inside sRGB: displays the same on any screen.

White text on it reaches 11.12:1 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: #183c69 mixed with white

  1. 183c69
  2. 2e4e78
  3. 436086
  4. 597395
  5. 6f86a4
  6. 8699b3
  7. 9dadc2
  8. b5c1d1
  9. cdd5e0
  10. e6eaf0

Darker: #183c69 mixed with black

  1. 183c69
  2. 13335a
  3. 0f2a4c
  4. 0a213e
  5. 071931
  6. 041124
  7. 020a18
  8. 01040c
  9. 000104
  10. 000000

Calmer: #183c69 with less saturation

  1. 183c69
  2. 1d3c65
  3. 213d60
  4. 253d5c
  5. 293d57
  6. 2c3d53
  7. 303d4e
  8. 333d4a
  9. 363c45
  10. 393c41

Questions about #183c69

What color is #183c69?

#183c69 is deep dark blue. The closest named color is Blue Opal. In RGB it is rgb(24, 60, 105), in HSL hsl(213.33, 62.79%, 25.29%) and in OKLCH oklch(35.526% 0.08862 255.476).

What colors go well with #183c69?

The complementary color of #183c69 is #563300. For a calmer combination use the analogous colors #00445f and #383368. The triadic partners are #62252c and #254610.

Is white or black text more readable on #183c69?

White text reads better on #183c69: white gives a contrast ratio of 11.12:1 and black gives 1.89:1. WCAG AA asks for at least 4.5:1 for body text.

Is #183c69 a warm or cool color?

#183c69 is a cool color. In OKLCH its hue is 255 degrees, its lightness 35.5% and its chroma 0.089.