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#309fd4 color: Blue Burst

#309fd4 is rgb(48, 159, 212) in RGB and oklch(66.488% 0.12407 234.369) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

199°
100%

66.5%
0.124
234°
  • Sky blue
  • Medium
  • Vivid
  • Cool
  • ≈ Steel blue
  • sky-500
  • Black 17%

Inside sRGB: displays the same on any screen.

White text
2.98:1Hard to read
Lc -61
Black text
7.04:1Readable · AA
Lc 48

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About #309fd4

#309fd4 is a bright sky blue color. In OKLCH it has 66.5% lightness, 0.124 chroma and a hue of 234°.

Inside sRGB: displays the same on any screen.

White text on it reaches 2.98:1 contrast and black text 7.04:1, so black text reads better.

The closest named color is Blue Burst (#309cd0). In Tailwind CSS the closest color is sky-500.

More medium sky blue colors

Lighter: #309fd4 mixed with white

  1. 309fd4
  2. 4da9d9
  3. 64b3dd
  4. 7abce2
  5. 8ec6e7
  6. a1cfeb
  7. b4d9ef
  8. c7e3f3
  9. daecf7
  10. ecf6fb

Darker: #309fd4 mixed with black

  1. 309fd4
  2. 288ab8
  3. 21759d
  4. 1a6183
  5. 134d69
  6. 0c3b51
  7. 06293a
  8. 031824
  9. 010910
  10. 000102

Calmer: #309fd4 with less saturation

  1. 309fd4
  2. 419ece
  3. 4f9dc7
  4. 5a9dc1
  5. 649cbb
  6. 6e9ab4
  7. 7699ae
  8. 7e98a7
  9. 8697a1
  10. 8d959a

Questions about #309fd4

What color is #309fd4?

#309fd4 is bright sky blue. The closest named color is Blue Burst. In RGB it is rgb(48, 159, 212), in HSL hsl(199.39, 65.6%, 50.98%) and in OKLCH oklch(66.488% 0.12407 234.369).

What colors go well with #309fd4?

The complementary color of #309fd4 is #ce7d43. For a calmer combination use the analogous colors #00a9b7 and #6d91e0. The triadic partners are #ce7198 and #929c37.

Is white or black text more readable on #309fd4?

Black text reads better on #309fd4: white gives a contrast ratio of 2.98:1 and black gives 7.04:1. WCAG AA asks for at least 4.5:1 for body text.

Is #309fd4 a warm or cool color?

#309fd4 is a cool color. In OKLCH its hue is 234 degrees, its lightness 66.5% and its chroma 0.124.