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#51ECFF

#51ecff ≈ Electric Blue

  • cyan
  • Lightness: high
  • Saturation: strong
  • Cool
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#51ecff is a color from the cyan family, with high lightness and strong saturation. In the RGB model it is made of 31.76% red, 92.55% green and 100% blue; printed in CMYK it uses 68.24% cyan, 7.45% magenta, 0% yellow and 0% black. Its hue angle is 186.55°, with 100% saturation and 65.88% lightness in HSL. It is a cool color, often associated with freshness, technology and clarity. Designers typically use it for health and wellness, technology products and call-to-action buttons. Black text on this color reaches a contrast ratio of 14.79:1 (WCAG AAA). The closest named color is Electric Blue (#7df9ff), ΔE 5.1.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#66ffff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.6896

Complementary

  1. #51ecff
  2. #ff6451

Split complementary

  1. #51ecff
  2. #ff5195
  3. #ffbb51

Analogous

  1. #51ffbb
  2. #51ecff
  3. #5195ff

Triadic

  1. #51ecff
  2. #ff51ec
  3. #ecff51

Tetradic

  1. #51ecff
  2. #6451ff
  3. #ff6451
  4. #ecff51

Square

  1. #51ecff
  2. #bb51ff
  3. #ff6451
  4. #95ff51

Monochromatic

  1. #00a3b7
  2. #04e4ff
  3. #51ecff
  4. #9df4ff
  5. #eafdff

Shades

#51ecff mixed progressively with black.

  1. #51ecff
  2. #49d4e6
  3. #41bdcc
  4. #39a5b3
  5. #318e99
  6. #297680
  7. #205e66
  8. #18474d
  9. #102f33
  10. #08181a
  11. #000000

Tints

#51ecff mixed progressively with white.

  1. #51ecff
  2. #62eeff
  3. #74f0ff
  4. #85f2ff
  5. #97f4ff
  6. #a8f6ff
  7. #b9f7ff
  8. #cbf9ff
  9. #dcfbff
  10. #eefdff
  11. #ffffff

Tones

#51ecff mixed progressively with gray.

  1. #51ecff
  2. #56e1f2
  3. #5ad6e6
  4. #5fccd9
  5. #64c1cc
  6. #69b6c0
  7. #6dabb3
  8. #72a0a6
  9. #779699
  10. #7b8b8d
  11. #808080

Readable text 1.42:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 14.79:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #d8d8d8 ≈ 0.003% of males
Achromatomaly #b2e1e9 ≈ 0.001% of males
Protanopia #d9e3ff ≈ 1.01% of males
Deuteranopia #c0d1ff ≈ 1.27% of males
Tritanopia #00f6f2 ≈ 0.0001% of males
Protanomaly #b2e7ff ≈ 1.08% of males
Deuteranomaly #9fdcff ≈ 4.63% of males
Tritanomaly #00f2f7 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-51ecff {
  color: #51ecff;
}
Background
.bg-51ecff {
  background-color: #51ecff;
  color: #000000;
}
Border
.border-51ecff {
  border: 2px solid #51ecff;
}
CSS variables
:root {
  --color-primary: #51ecff;
  --color-primary-rgb: 81 236 255;
  --color-primary-hsl: 187 100% 66%;
}
Gradient
.gradient-51ecff {
  background: linear-gradient(135deg, #51ecff, #5195ff);
}
Colored shadow
.shadow-51ecff {
  box-shadow: 0 8px 24px rgb(81 236 255 / 0.35);
}

#7df9ff Electric Blue ΔE 5.10 #00ffff Aqua ΔE 8.09 #00ffff Cyan ΔE 8.09 #00ced1 Dark Turquoise ΔE 9.45 #b2ffff Celeste ΔE 9.68 #afeeee Pale Turquoise ΔE 9.70 #a4dded Non-Photo Blue ΔE 9.72 #ae1300 Inverted #d8d8d8 Grayscale 

Electric Blue
#51ecff  rgb(81, 236, 255)  hsl(187, 100%, 66%)  Electric Blue
#ff6451  rgb(255, 100, 81)  hsl(7, 100%, 66%)  Tomato
#ff51ec  rgb(255, 81, 236)  hsl(307, 100%, 66%)  Fuchsia
#ecff51  rgb(236, 255, 81)  hsl(67, 100%, 66%)  Lemon Lime