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#183d64 color: Blue Opal

#183d64 is rgb(24, 61, 100) in RGB and oklch(35.44% 0.08011 252.1) in OKLCH. Every other format, shade and contrast value is below.

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211°
100%

35.4%
0.080
252°
  • Blue
  • Dark
  • Soft
  • Cool
  • ≈ Charcoal
  • slate-700
  • Black 61%

Inside sRGB: displays the same on any screen.

White text
11.11:1Readable · AA
Lc -99
Black text
1.89:1Hard to read
Lc 8

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About #183d64

#183d64 is a soft dark blue color. In OKLCH it has 35.4% lightness, 0.08 chroma and a hue of 252°.

Inside sRGB: displays the same on any screen.

White text on it reaches 11.11:1 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 slate-700.

More dark blue colors

Lighter: #183d64 mixed with white

  1. 183d64
  2. 2e4f73
  3. 436182
  4. 597391
  5. 6f86a1
  6. 869ab0
  7. 9dadc0
  8. b5c1cf
  9. cdd5df
  10. e6eaef

Darker: #183d64 mixed with black

  1. 183d64
  2. 133456
  3. 0f2b48
  4. 0a223b
  5. 071a2e
  6. 041222
  7. 020a16
  8. 01040b
  9. 000103
  10. 000000

Calmer: #183d64 with less saturation

  1. 183d64
  2. 1d3d60
  3. 213d5c
  4. 253d58
  5. 293d54
  6. 2c3d50
  7. 303d4c
  8. 333d48
  9. 363c44
  10. 393c40

Questions about #183d64

What color is #183d64?

#183d64 is soft dark blue. The closest named color is Blue Opal. In RGB it is rgb(24, 61, 100), in HSL hsl(210.79, 61.29%, 24.31%) and in OKLCH oklch(35.44% 0.08011 252.1).

What colors go well with #183d64?

The complementary color of #183d64 is #553300. For a calmer combination use the analogous colors #004459 and #363564. The triadic partners are #5e2730 and #2b4413.

Is white or black text more readable on #183d64?

White text reads better on #183d64: white gives a contrast ratio of 11.11:1 and black gives 1.89:1. WCAG AA asks for at least 4.5:1 for body text.

Is #183d64 a warm or cool color?

#183d64 is a cool color. In OKLCH its hue is 252 degrees, its lightness 35.4% and its chroma 0.08.