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#646fa9 color: Twinkle Night

#646fa9 is rgb(100, 111, 169) in RGB and oklch(55.735% 0.09107 274.875) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

230°
100%

55.7%
0.091
275°
  • Indigo
  • Medium
  • Soft
  • Cool
  • ≈ Steel blue
  • slate-500
  • Black 34%

Inside sRGB: displays the same on any screen.

White text
4.79:1Readable · AA
Lc -79
Black text
4.39:1Hard to read
Lc 31

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About #646fa9

#646fa9 is a soft indigo color. In OKLCH it has 55.7% lightness, 0.091 chroma and a hue of 275°.

Inside sRGB: displays the same on any screen.

White text on it reaches 4.79:1 contrast and black text 4.39:1, so white text reads better.

The closest named color is Twinkle Night (#636ca8). In Tailwind CSS the closest color is slate-500.

More medium indigo colors

Lighter: #646fa9 mixed with white

  1. 646fa9
  2. 727db2
  3. 818bbb
  4. 8f99c3
  5. 9ea7cc
  6. aeb5d5
  7. bec4dd
  8. ced2e6
  9. dee1ee
  10. eef0f7

Darker: #646fa9 mixed with black

  1. 646fa9
  2. 566092
  3. 48517c
  4. 3b4267
  5. 2e3453
  6. 22273f
  7. 161a2c
  8. 0b0e1b
  9. 03040a
  10. 000101

Calmer: #646fa9 with less saturation

  1. 646fa9
  2. 6570a4
  3. 67709f
  4. 687199
  5. 6a7294
  6. 6b728f
  7. 6d728a
  8. 6f7384
  9. 70737f
  10. 727379

Questions about #646fa9

What color is #646fa9?

#646fa9 is soft indigo. The closest named color is Twinkle Night. In RGB it is rgb(100, 111, 169), in HSL hsl(230.43, 28.63%, 52.75%) and in OKLCH oklch(55.735% 0.09107 274.875).

What colors go well with #646fa9?

The complementary color of #646fa9 is #85732e. For a calmer combination use the analogous colors #4279a5 and #80669f. The triadic partners are #a25f4f and #43835c.

Is white or black text more readable on #646fa9?

White text reads better on #646fa9: white gives a contrast ratio of 4.79:1 and black gives 4.39:1. WCAG AA asks for at least 4.5:1 for body text.

Is #646fa9 a warm or cool color?

#646fa9 is a cool color. In OKLCH its hue is 275 degrees, its lightness 55.7% and its chroma 0.091.