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#647bc4 color: Ultramarine Blue

#647bc4 is rgb(100, 123, 196) in RGB and oklch(59.725% 0.11495 269.463) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

226°
100%

59.7%
0.115
269°
  • Blue
  • Medium
  • Soft
  • Cool
  • ≈ Steel blue
  • sky-600
  • Black 23%

Inside sRGB: displays the same on any screen.

White text
4.06:1Hard to read
Lc -73
Black text
5.17:1Readable · AA
Lc 36

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About #647bc4

#647bc4 is a soft blue color. In OKLCH it has 59.7% lightness, 0.115 chroma and a hue of 269°.

Inside sRGB: displays the same on any screen.

White text on it reaches 4.06:1 contrast and black text 5.17:1, so white text reads better.

The closest named color is Ultramarine Blue (#657abb). In Tailwind CSS the closest color is sky-600.

More medium blue colors

Lighter: #647bc4 mixed with white

  1. 647bc4
  2. 7288cb
  3. 8195d1
  4. 90a2d7
  5. 9fafdd
  6. aebce3
  7. becae9
  8. ced7ef
  9. dee4f4
  10. eef2fa

Darker: #647bc4 mixed with black

  1. 647bc4
  2. 566aaa
  3. 485a91
  4. 3b4a78
  5. 2e3a61
  6. 222c4a
  7. 161e35
  8. 0b1021
  9. 03050e
  10. 000102

Calmer: #647bc4 with less saturation

  1. 647bc4
  2. 677cbd
  3. 697db7
  4. 6c7db0
  5. 6f7ea9
  6. 717ea2
  7. 747f9c
  8. 777f95
  9. 7a7f8e
  10. 7c7f86

Questions about #647bc4

What color is #647bc4?

#647bc4 is soft blue. The closest named color is Ultramarine Blue. In RGB it is rgb(100, 123, 196), in HSL hsl(225.63, 44.86%, 58.04%) and in OKLCH oklch(59.725% 0.11495 269.463).

What colors go well with #647bc4?

The complementary color of #647bc4 is #9b7b18. For a calmer combination use the analogous colors #2f88bc and #8a6fba. The triadic partners are #ba6356 and #479259.

Is white or black text more readable on #647bc4?

White text reads better on #647bc4: white gives a contrast ratio of 4.06:1 and black gives 5.17:1. WCAG AA asks for at least 4.5:1 for body text.

Is #647bc4 a warm or cool color?

#647bc4 is a cool color. In OKLCH its hue is 269 degrees, its lightness 59.7% and its chroma 0.115.