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#66A5BF

#66a5bf ≈ Moonstone Blue

  • azure
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#66a5bf is a color from the azure family, with medium lightness and moderate saturation. In the RGB model it is made of 40% red, 64.71% green and 74.9% blue; printed in CMYK it uses 46.6% cyan, 13.61% magenta, 0% yellow and 25.1% black. Its hue angle is 197.53°, with 41.01% saturation and 57.45% 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 7.7:1 (WCAG AAA). The closest named color is Moonstone Blue (#73a9c2), ΔE 2.08.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#6699cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.335

Complementary

  1. #66a5bf
  2. #bf8066

Split complementary

  1. #66a5bf
  2. #bf6678
  3. #bfac66

Analogous

  1. #66bfac
  2. #66a5bf
  3. #6678bf

Triadic

  1. #66a5bf
  2. #bf66a5
  3. #a5bf66

Tetradic

  1. #66a5bf
  2. #8066bf
  3. #bf8066
  4. #a5bf66

Square

  1. #66a5bf
  2. #ac66bf
  3. #bf8066
  4. #78bf66

Monochromatic

  1. #295263
  2. #407f99
  3. #66a5bf
  4. #9cc5d6
  5. #d2e4ec

Shades

#66a5bf mixed progressively with black.

  1. #66a5bf
  2. #5c95ac
  3. #528499
  4. #477486
  5. #3d6373
  6. #335360
  7. #29424c
  8. #1f3239
  9. #142126
  10. #0a1113
  11. #000000

Tints

#66a5bf mixed progressively with white.

  1. #66a5bf
  2. #75aec5
  3. #85b7cc
  4. #94c0d2
  5. #a3c9d9
  6. #b3d2df
  7. #c2dbe5
  8. #d1e4ec
  9. #e0edf2
  10. #f0f6f9
  11. #ffffff

Tones

#66a5bf mixed progressively with gray.

  1. #66a5bf
  2. #69a1b9
  3. #6b9eb2
  4. #6e9aac
  5. #7096a6
  6. #7393a0
  7. #768f99
  8. #788b93
  9. #7b878d
  10. #7d8486
  11. #808080

Readable text 2.73:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 7.7:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #9d9d9d ≈ 0.003% of males
Achromatomaly #8aa0ab ≈ 0.001% of males
Protanopia #97a2c0 ≈ 1.01% of males
Deuteranopia #8a98bf ≈ 1.27% of males
Tritanopia #3cadad ≈ 0.0001% of males
Protanomaly #86a3c0 ≈ 1.08% of males
Deuteranomaly #7d9dbf ≈ 4.63% of males
Tritanomaly #50aab5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-66a5bf {
  color: #66a5bf;
}
Background
.bg-66a5bf {
  background-color: #66a5bf;
  color: #000000;
}
Border
.border-66a5bf {
  border: 2px solid #66a5bf;
}
CSS variables
:root {
  --color-primary: #66a5bf;
  --color-primary-rgb: 102 165 191;
  --color-primary-hsl: 198 41% 57%;
}
Gradient
.gradient-66a5bf {
  background: linear-gradient(135deg, #66a5bf, #6678bf);
}
Colored shadow
.shadow-66a5bf {
  box-shadow: 0 8px 24px rgb(102 165 191 / 0.35);
}

#73a9c2 Moonstone Blue ΔE 2.08 #71a6d2 Iceberg ΔE 6.97 #56a0d3 Carolina Blue ΔE 7.01 #0095b6 Bondi Blue ΔE 8.20 #5d8aa8 Air Force Blue ΔE 9.33 #5f9ea0 Cadet Blue ΔE 10.17 #00bfff Deep Sky Blue ΔE 10.87 #995a40 Inverted #9d9d9d Grayscale 

Moonstone Blue
#66a5bf  rgb(102, 165, 191)  hsl(198, 41%, 57%)  Moonstone Blue
#bf8066  rgb(191, 128, 102)  hsl(18, 41%, 57%)  Cafe au Lait
#bf66a5  rgb(191, 102, 165)  hsl(318, 41%, 57%)  Sky Magenta
#a5bf66  rgb(165, 191, 102)  hsl(78, 41%, 57%)  Olivine