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#153d66 color: Blue Opal

#153d66 is rgb(21, 61, 102) in RGB and oklch(35.46% 0.08418 251.895) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

210°
100%

35.5%
0.084
252°
  • Blue
  • Dark
  • Vivid
  • Deep
  • Cool
  • ≈ Charcoal
  • sky-900
  • Black 60%

Inside sRGB: displays the same on any screen.

White text
11.10:1Readable · AA
Lc -99
Black text
1.89:1Hard to read
Lc 9

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About #153d66

#153d66 is a deep dark blue color. In OKLCH it has 35.5% lightness, 0.084 chroma and a hue of 252°.

Inside sRGB: displays the same on any screen.

White text on it reaches 11.1:1 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: #153d66 mixed with white

  1. 153d66
  2. 2c4f75
  3. 426184
  4. 587493
  5. 6e86a2
  6. 859ab1
  7. 9cadc1
  8. b4c1d0
  9. cdd6e0
  10. e6eaef

Darker: #153d66 mixed with black

  1. 153d66
  2. 113458
  3. 0c2b4a
  4. 08223c
  5. 051a2f
  6. 031223
  7. 020a17
  8. 01040c
  9. 000104
  10. 000000

Calmer: #153d66 with less saturation

  1. 153d66
  2. 1b3d62
  3. 1f3d5e
  4. 243d5a
  5. 283d55
  6. 2b3d51
  7. 2f3d4d
  8. 323d49
  9. 353c44
  10. 393c40

Questions about #153d66

What color is #153d66?

#153d66 is deep dark blue. The closest named color is Blue Opal. In RGB it is rgb(21, 61, 102), in HSL hsl(210.37, 65.85%, 24.12%) and in OKLCH oklch(35.46% 0.08418 251.895).

What colors go well with #153d66?

The complementary color of #153d66 is #563300. For a calmer combination use the analogous colors #00445b and #353566. The triadic partners are #602630 and #2b440f.

Is white or black text more readable on #153d66?

White text reads better on #153d66: white gives a contrast ratio of 11.1:1 and black gives 1.89:1. WCAG AA asks for at least 4.5:1 for body text.

Is #153d66 a warm or cool color?

#153d66 is a cool color. In OKLCH its hue is 252 degrees, its lightness 35.5% and its chroma 0.084.