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#647cbc color: Ultramarine Blue

#647cbc is rgb(100, 124, 188) in RGB and oklch(59.507% 0.10224 267.621) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

224°
100%

59.5%
0.102
268°
  • Blue
  • Medium
  • Soft
  • Cool
  • ≈ Steel blue
  • slate-500
  • Black 26%

Inside sRGB: displays the same on any screen.

White text
4.08:1Hard to read
Lc -73
Black text
5.15:1Readable · AA
Lc 36

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About #647cbc

#647cbc is a soft blue color. In OKLCH it has 59.5% lightness, 0.102 chroma and a hue of 268°.

Inside sRGB: displays the same on any screen.

White text on it reaches 4.08:1 contrast and black text 5.15:1, so white text reads better.

The closest named color is Ultramarine Blue (#657abb). In Tailwind CSS the closest color is slate-500.

More medium blue colors

Lighter: #647cbc mixed with white

  1. 647cbc
  2. 7289c3
  3. 8196ca
  4. 90a3d1
  5. 9fb0d8
  6. aebddf
  7. becae5
  8. ced7ec
  9. dee4f2
  10. eef2f9

Darker: #647cbc mixed with black

  1. 647cbc
  2. 566ba3
  3. 485a8b
  4. 3b4a73
  5. 2e3b5d
  6. 222c47
  7. 161e32
  8. 0b111f
  9. 03050d
  10. 000102

Calmer: #647cbc with less saturation

  1. 647cbc
  2. 677db6
  3. 697db0
  4. 6c7eaa
  5. 6f7ea4
  6. 717e9e
  7. 747e98
  8. 777f92
  9. 797f8b
  10. 7c7f85

Questions about #647cbc

What color is #647cbc?

#647cbc is soft blue. The closest named color is Ultramarine Blue. In RGB it is rgb(100, 124, 188), in HSL hsl(223.64, 39.64%, 56.47%) and in OKLCH oklch(59.507% 0.10224 267.621).

What colors go well with #647cbc?

The complementary color of #647cbc is #987b2c. For a calmer combination use the analogous colors #3a87b4 and #8671b4. The triadic partners are #b4665c and #528f5b.

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

White text reads better on #647cbc: white gives a contrast ratio of 4.08:1 and black gives 5.15:1. WCAG AA asks for at least 4.5:1 for body text.

Is #647cbc a warm or cool color?

#647cbc is a cool color. In OKLCH its hue is 268 degrees, its lightness 59.5% and its chroma 0.102.