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#183e64 color: Blue Opal

#183e64 is rgb(24, 62, 100) in RGB and oklch(35.698% 0.07899 251.012) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

210°
100%

35.7%
0.079
251°
  • Blue
  • Dark
  • Soft
  • Cool
  • ≈ Charcoal
  • slate-700
  • Black 61%

Inside sRGB: displays the same on any screen.

White text
10.98:1Readable · AA
Lc -99
Black text
1.91:1Hard to read
Lc 9

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About #183e64

#183e64 is a soft dark blue color. In OKLCH it has 35.7% lightness, 0.079 chroma and a hue of 251°.

Inside sRGB: displays the same on any screen.

White text on it reaches 10.98:1 contrast and black text 1.91:1, 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: #183e64 mixed with white

  1. 183e64
  2. 2e5073
  3. 446282
  4. 597491
  5. 7087a1
  6. 869ab0
  7. 9daec0
  8. b5c1cf
  9. cdd6df
  10. e6eaef

Darker: #183e64 mixed with black

  1. 183e64
  2. 133556
  3. 0f2b48
  4. 0a233b
  5. 071a2e
  6. 041222
  7. 020a16
  8. 01040b
  9. 000103
  10. 000000

Calmer: #183e64 with less saturation

  1. 183e64
  2. 1d3e60
  3. 213e5c
  4. 253e58
  5. 293e55
  6. 2d3e51
  7. 303e4d
  8. 333d49
  9. 363d45
  10. 393d40

Questions about #183e64

What color is #183e64?

#183e64 is soft dark blue. The closest named color is Blue Opal. In RGB it is rgb(24, 62, 100), in HSL hsl(210, 61.29%, 24.31%) and in OKLCH oklch(35.698% 0.07899 251.012).

What colors go well with #183e64?

The complementary color of #183e64 is #563400. For a calmer combination use the analogous colors #004559 and #363664. The triadic partners are #5e2932 and #2d4413.

Is white or black text more readable on #183e64?

White text reads better on #183e64: white gives a contrast ratio of 10.98:1 and black gives 1.91:1. WCAG AA asks for at least 4.5:1 for body text.

Is #183e64 a warm or cool color?

#183e64 is a cool color. In OKLCH its hue is 251 degrees, its lightness 35.7% and its chroma 0.079.