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#399cf3 color: Rockman Blue

#399cf3 is rgb(57, 156, 243) in RGB and oklch(67.657% 0.15742 249.067) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

208°
100%

67.7%
0.157
249°
  • Blue
  • Medium
  • Vivid
  • Cool
  • ≈ Azure
  • blue-400
  • Black 5%

Inside sRGB: displays the same on any screen.

White text
2.91:1Hard to read
Lc -60
Black text
7.22:1Readable · AA
Lc 49

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About #399cf3

#399cf3 is a bright blue color. In OKLCH it has 67.7% lightness, 0.157 chroma and a hue of 249°.

Inside sRGB: displays the same on any screen.

White text on it reaches 2.91:1 contrast and black text 7.22:1, so black text reads better.

The closest named color is Rockman Blue (#31a2f2). In Tailwind CSS the closest color is blue-400.

More medium blue colors

Lighter: #399cf3 mixed with white

  1. 399cf3
  2. 52a7f5
  3. 68b1f7
  4. 7cbbf9
  5. 90c5fa
  6. a2cffc
  7. b5d9fd
  8. c8e2fe
  9. daecfe
  10. edf6ff

Darker: #399cf3 mixed with black

  1. 399cf3
  2. 3087d3
  3. 2873b4
  4. 1f5f97
  5. 174c7a
  6. 10395e
  7. 092844
  8. 04182b
  9. 010914
  10. 000103

Calmer: #399cf3 with less saturation

  1. 399cf3
  2. 489cea
  3. 549ce1
  4. 5e9cd8
  5. 689ccf
  6. 719bc6
  7. 799bbd
  8. 819ab4
  9. 8999aa
  10. 9098a1

Questions about #399cf3

What color is #399cf3?

#399cf3 is bright blue. The closest named color is Rockman Blue. In RGB it is rgb(57, 156, 243), in HSL hsl(208.06, 88.57%, 58.82%) and in OKLCH oklch(67.657% 0.15742 249.067).

What colors go well with #399cf3?

The complementary color of #399cf3 is #d48200. For a calmer combination use the analogous colors #00aad2 and #848af6. The triadic partners are #e66883 and #78a930.

Is white or black text more readable on #399cf3?

Black text reads better on #399cf3: white gives a contrast ratio of 2.91:1 and black gives 7.22:1. WCAG AA asks for at least 4.5:1 for body text.

Is #399cf3 a warm or cool color?

#399cf3 is a cool color. In OKLCH its hue is 249 degrees, its lightness 67.7% and its chroma 0.157.