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#51B8EA

#51b8ea ≈ Deep Sky Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#51b8ea is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 31.76% red, 72.16% green and 91.76% blue; printed in CMYK it uses 65.38% cyan, 21.37% magenta, 0% yellow and 8.24% black. Its hue angle is 199.61°, with 78.46% saturation and 61.76% lightness in HSL. It is a cool color, often associated with openness, freedom and calm. Designers typically use it for technology products, finance and banking and brand accents. Black text on this color reaches a contrast ratio of 9.39:1 (WCAG AAA). The closest named color is Deep Sky Blue (#00bfff), ΔE 3.4.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#66ccff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.4197

Complementary

  1. #51b8ea
  2. #ea8351

Split complementary

  1. #51b8ea
  2. #ea516b
  3. #eacf51

Analogous

  1. #51eacf
  2. #51b8ea
  3. #516bea

Triadic

  1. #51b8ea
  2. #ea51b8
  3. #b8ea51

Tetradic

  1. #51b8ea
  2. #8351ea
  3. #ea8351
  4. #b8ea51

Square

  1. #51b8ea
  2. #cf51ea
  3. #ea8351
  4. #6bea51

Monochromatic

  1. #116791
  2. #1a98d5
  3. #51b8ea
  4. #95d4f2
  5. #daf0fa

Shades

#51b8ea mixed progressively with black.

  1. #51b8ea
  2. #49a6d3
  3. #4193bb
  4. #3981a4
  5. #316e8c
  6. #295c75
  7. #204a5e
  8. #183746
  9. #10252f
  10. #081217
  11. #000000

Tints

#51b8ea mixed progressively with white.

  1. #51b8ea
  2. #62bfec
  3. #74c6ee
  4. #85cdf0
  5. #97d4f2
  6. #a8dcf5
  7. #b9e3f7
  8. #cbeaf9
  9. #dcf1fb
  10. #eef8fd
  11. #ffffff

Tones

#51b8ea mixed progressively with gray.

  1. #51b8ea
  2. #56b2df
  3. #5aadd5
  4. #5fa7ca
  5. #64a2c0
  6. #699cb5
  7. #6d96aa
  8. #7291a0
  9. #778b95
  10. #7b868b
  11. #808080

Readable text 2.24:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 9.39:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #adadad ≈ 0.003% of males
Achromatomaly #91b2c9 ≈ 0.001% of males
Protanopia #9fb6ec ≈ 1.01% of males
Deuteranopia #8aa7e9 ≈ 1.27% of males
Tritanopia #00c5c9 ≈ 0.0001% of males
Protanomaly #87b7eb ≈ 1.08% of males
Deuteranomaly #77aeea ≈ 4.63% of males
Tritanomaly #00c0d7 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-51b8ea {
  color: #51b8ea;
}
Background
.bg-51b8ea {
  background-color: #51b8ea;
  color: #000000;
}
Border
.border-51b8ea {
  border: 2px solid #51b8ea;
}
CSS variables
:root {
  --color-primary: #51b8ea;
  --color-primary-rgb: 81 184 234;
  --color-primary-hsl: 200 78% 62%;
}
Gradient
.gradient-51b8ea {
  background: linear-gradient(135deg, #51b8ea, #516bea);
}
Colored shadow
.shadow-51b8ea {
  box-shadow: 0 8px 24px rgb(81 184 234 / 0.35);
}

#00bfff Deep Sky Blue ΔE 3.40 #73c2fb Maya Blue ΔE 5.15 #87cefa Light Sky Blue ΔE 7.09 #56a0d3 Carolina Blue ΔE 7.43 #71a6d2 Iceberg ΔE 7.44 #73a9c2 Moonstone Blue ΔE 7.48 #89cff0 Baby Blue ΔE 7.78 #ae4715 Inverted #adadad Grayscale 

Deep Sky Blue
#51b8ea  rgb(81, 184, 234)  hsl(200, 78%, 62%)  Deep Sky Blue
#ea8351  rgb(234, 131, 81)  hsl(20, 78%, 62%)  Mango Tango
#ea51b8  rgb(234, 81, 184)  hsl(320, 78%, 62%)  Shocking Pink
#b8ea51  rgb(184, 234, 81)  hsl(80, 78%, 62%)  Inchworm