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#666CD6

#666cd6 ≈ Medium Slate Blue

  • blue
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#666cd6 is a color from the blue family, with medium lightness and moderate saturation. In the RGB model it is made of 40% red, 42.35% green and 83.92% blue; printed in CMYK it uses 52.34% cyan, 49.53% magenta, 0% yellow and 16.08% black. Its hue angle is 236.79°, with 57.73% saturation and 61.96% lightness in HSL. It is a cool color, often associated with trust, stability and focus. Designers typically use it for technology products, finance and banking and brand accents. Black text on this color reaches a contrast ratio of 4.68:1 (WCAG AA). The closest named color is Medium Slate Blue (#7b68ee), ΔE 5.4.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#6666cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.184

Complementary

  1. #666cd6
  2. #d6d066

Split complementary

  1. #666cd6
  2. #d69866
  3. #a4d666

Analogous

  1. #66a4d6
  2. #666cd6
  3. #9866d6

Triadic

  1. #666cd6
  2. #d6666c
  3. #6cd666

Tetradic

  1. #666cd6
  2. #d066d6
  3. #d6d066
  4. #6cd666

Square

  1. #666cd6
  2. #d666a4
  3. #d6d066
  4. #66d698

Monochromatic

  1. #222781
  2. #333abd
  3. #666cd6
  4. #a2a6e6
  5. #dfe0f6

Shades

#666cd6 mixed progressively with black.

  1. #666cd6
  2. #5c61c1
  3. #5256ab
  4. #474c96
  5. #3d4180
  6. #33366b
  7. #292b56
  8. #1f2040
  9. #14162b
  10. #0a0b15
  11. #000000

Tints

#666cd6 mixed progressively with white.

  1. #666cd6
  2. #757bda
  3. #8589de
  4. #9498e2
  5. #a3a7e6
  6. #b3b6eb
  7. #c2c4ef
  8. #d1d3f3
  9. #e0e2f7
  10. #f0f0fb
  11. #ffffff

Tones

#666cd6 mixed progressively with gray.

  1. #666cd6
  2. #696ecd
  3. #6b70c5
  4. #6e72bc
  5. #7074b4
  6. #7376ab
  7. #7678a2
  8. #787a9a
  9. #7b7c91
  10. #7d7e89
  11. #808080

Readable text 4.49:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.68:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #777777 ≈ 0.003% of males
Achromatomaly #7173a6 ≈ 0.001% of males
Protanopia #397cda ≈ 1.01% of males
Deuteranopia #2b73d4 ≈ 1.27% of males
Tritanopia #358397 ≈ 0.0001% of males
Protanomaly #4f76d8 ≈ 1.08% of males
Deuteranomaly #4a70d5 ≈ 4.63% of males
Tritanomaly #4d7bb4 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-666cd6 {
  color: #666cd6;
}
Background
.bg-666cd6 {
  background-color: #666cd6;
  color: #000000;
}
Border
.border-666cd6 {
  border: 2px solid #666cd6;
}
CSS variables
:root {
  --color-primary: #666cd6;
  --color-primary-rgb: 102 108 214;
  --color-primary-hsl: 237 58% 62%;
}
Gradient
.gradient-666cd6 {
  background: linear-gradient(135deg, #666cd6, #9866d6);
}
Colored shadow
.shadow-666cd6 {
  box-shadow: 0 8px 24px rgb(102 108 214 / 0.35);
}

#7b68ee Medium Slate Blue ΔE 5.40 #4169e1 Royal Blue ΔE 5.42 #4166f5 Ultramarine Blue ΔE 5.70 #6a5acd Slate Blue ΔE 6.29 #6050dc Majorelle Blue ΔE 8.67 #0070ff Brandeis Blue ΔE 8.95 #9370db Medium Purple ΔE 9.10 #999329 Inverted #777777 Grayscale 

Medium Slate Blue
#666cd6  rgb(102, 108, 214)  hsl(237, 58%, 62%)  Medium Slate Blue
#d6d066  rgb(214, 208, 102)  hsl(57, 58%, 62%)  Straw
#d6666c  rgb(214, 102, 108)  hsl(357, 58%, 62%)  Indian Red
#6cd666  rgb(108, 214, 102)  hsl(117, 58%, 62%)  Pastel Green